Background
R.C. Sihag was born on January 5, 1952 in Siwani Bolan (Distt. Hisar, Haryana, India); Son of Sudhan Ram Sihag and Birjo Devi (Panghaal) Sihag.
R C Sihag
ecologist educator researcher Apiculturist environmental biologist Distinguished Teacher Education Manager and Administrator
R.C. Sihag was born on January 5, 1952 in Siwani Bolan (Distt. Hisar, Haryana, India); Son of Sudhan Ram Sihag and Birjo Devi (Panghaal) Sihag.
Bachelor of Science (Biology), Government College, Hisar (Haryana, India), 1973; Master of Science (Zoology, Fisheries), Kurukshetra University, Kurukshetra (Haryana, India), 1975; Doctor of Philosophy (Zoology, Environmental Biology, Apiculture), Haryana Agricultural University, Hisar (Haryana, India), 1980.
Biodata of Prof. R. C. Sihag
i). Name : Dr. R.C. Sihag, Ex-Dean
ii). Address : College of Basic Sciences & Humanities, CCS Haryana Agricultural University, Hisar-125004
iii). Permanent Address : House No. 162, Sector-15A, Hisar-125001.
iv). Phone : E-mail : sihagrc@rediffmail.com
v). Date of Birth: 05-01-1952
vi). Education: Graduation in Biology (1973) --1st Division; Masters’ degree in Zoology with specialization in Fisheries (1975) – 1st Division, 1st position in the University; Doctorate degree in Zoology with specialization in Apiculture / Crop pollination Ecology / Environmental Biology (1980) – 1st Division.
vii). Experience: Since1979, Dr Sihag had been on the faculty of CCS Haryana Agricultural University, Hisar in different capacities. He has more than 35 years of distinguished record in teaching / research, and educational management and administration.
viii). Publications: During the past 35 years, Dr Sihag has made significant research contributions in the discipline of Apiculture / Crop Pollination Ecology / Fish Pathology / Vermiculture/ Environmental Biology. He has published more than 180 research and technical articles in reputed National / International Journals, and authored six books.
ix). Innovations made / Technology Developed: Dr. Sihag is credited with the introduction and establishment of European honeybee (Apis mellifera) in the subtropical climates of India.
x). Awards and Achievements: Achievements of Dr. Sihag have been widely recognized at National and International levels as evidenced by awards and other recognitions.
xi). Office bearer/Member, Scientific Societies/ Web Network: Dr. Sihag held office of some scientific Societies and is also member of some such societies.
xii). Editor/Member, Editorial Board of Scientific Journals: Dr. Sihag is a member, Editorial Boards of 35 National and International Scientific Journals.
xiii). Referee of the Scientific journals : Dr. Sihag is the Referee of more than 15 National and International Scientific Journals.
xiv). Member : a) Quinquennial Review Team of Indian Council of Agricultural Research,New Delhi : Dr. Sihag was a member of the Quinquennial Review Team of Indian Council of Agricultural Research,New Delhi, for reviewing the progress of All India Coordinated Project on Honeybees Research and Training (2005-07).
b) State level Co-ordination Committee on Agricultural Production, Govt. of Haryana: Dr. Sihag remained a member of the prestigious State level Co-ordination Committee on Agricultural Production, Govt. of Haryana (1987 – 90).
xv). Expert : He has been the Expert of the government / semi – government / autonomous agencies like University Grant Commission, (New Delhi), Indian Council of Agricultural Research (New Delhi), Department of Science and Technology (Govt. of India), Department of Bio-technology (Govt. of India), and Ministry of Environment and Forests (Govt. of India) for screening of their ecological research project proposals.
xvi). Research projects completed : He has completed seven research projects funded by United States Department of Agriculture (under Indo-US PL-480 funds), Council of Scientific and Industrial Research (New Delhi), Indian Council of Agricultural Research (New Delhi), Ministry of Environment and Forests (Govt. of India) and State Govt. of Haryana.
xvii). Leadership in International/National Conferences: Dr. Sihag imparted leadership in many International and National Conferences pertaining to his areas of specializations. He served as a member of the organizing committee in different capacities.
xviii). Chaired technical sessions: He has chaired many technical sessions in many National and International conferences in India and abroad.
xix). Delivered Lead Lectures: Dr. Sihag delivered many plenary / lead lectures on crop pollination ecology in many National and International conferences in India and abroad.
xx). Student Guidance: He has guided 29 PG Scholars in areas like Bee Behavior and Ecology, Bee Toxicity, Crop Pollination Ecology, Fish Pathology and Waste Management through Vermitechnology.
xxi). Visits in India and abroad: Prof. Sihag has widely travelled in India and abroad.
xxii). Experience of University administration and education management :
Dr. Sihag has more than 6 years of experience of university administration and education management in the capacity of Head of Department and Dean of the College.
A. Publications on Apiculture / Agriculture / Crop Pollination Ecology
(i) Publications in the refereed Journals
1. Kapil R.P. & Sihag, R.C. 1981. Environmental interaction with endocrine functions in relation to social activities of bees. Indian Bee J., 43: 64-65.
2. Sihag, R.C.1982a. Environmental regulation of pollination process in cultivated crops. Indian Bee J., 44(2): 42-45.
3. Sihag, R.C. 1982 b. Effect of competition with Parkinsonia aculeata L. on pollination and seed production in Medicago sativa L. Indian Bee J., 44 (4): 89-90.
4. Sihag, R.C. 1982 c. Problem of wax moth (Galleria mellonella L.) in the colonies of giant honeybee, Apis dorsata in Haryana. Indian Bee J. 44 (4): 107-109.
5. Sihag, R.C 1983 a. Honeybees forage on grape (Vitis vinifera L.) during dearth period. Indian Bee J., 45(4): 111-112.
6. Sihag, R.C. 1983 b. Prospects of beekeeping in Haryana. Indian Bee J., 45 (1): 8-11.
7. Sihag, R.C. 1983 c. Life cycle pattern, seasonal mortality, problem of parasitization and sex ratio pattern in alfalfa pollinating megachilid bees. Zeit. angew. Ent. 96(4): 368-379.
8. Sihag, R.C. 1983 d. Adaptive strategy of bees to overcome environmental hazards. Environ. & Ecol., 1(3): 151-152.
9. Sihag, R.C. 1984 a. Influence of environmental factors on the pollination activity of bees. Environ. & Ecol., 2(2): 149-152.
10. Sihag, R.C. 1984 b. The role of temperature in the evolution of bee plant mutualism. Indian Bee J., 46: 28-32.
11. Sihag, R.C. 1985 a. Vittellogenin of alfalfa pollinating bee, Megachile flavipes. Current Sci., 54(2): 92-94.
12. Sihag, R.C. 1985 b. Can alfalfa pollinating sub-tropical megachilid bees overcome Coelioxys parasitization? Current Sci., 54: 1250-1251.
13. Kapil, R.P. & Sihag R.C. 1985. Storage and incubation in the management of alfalfa pollinating bee, Megachile flavipes Spinola. J. Apic. Res., 24(2): 199-202.
14. Sihag, R.C. 1986 a. Reproduction in alfalfa pollinating subtropical megachilid bees. 1. Functional anatomy and histology of the organs of reproduction. Zool. Anz., 216(3/4): 191-203.
15. Sihag, R.C. 1986 b. Reproduction in alfalfa pollinating subtropical megachilid bees. 2. Reproductive isolating mechanisms. Zool. Anz., 216(3/4): 204-217.
16. Sihag, R.C. 1986 c. Reproduction in alfalfa pollinating subtropical megachilid bees. 3. Mating receptivity as influenced by eco-physiological factors. Zool. Anz. 216(3/4): 218-230.
17. Sihag, R.C. 1986 d. Reproduction in alfalfa pollinating subtropical megachilid bees. 4. Vitellogenesis and oosorption, and factors inducing these processes. Zool. Anz., 216(3/4): 231-249.
18. Sihag, R.C. 1986 e. Reproduction in alfalfa pollinating subtropical megachilid bees. 5. Effect of different feeding conditions on the ovarian recrudescence and haemolymph protein synthesis. Zool. Anz., 217(1/2): 89-102.
19. Sihag, R.C. 1986 f. Reproduction in alfalfa pollinating sub-tropical megachilid bees. 6. Formation of corpus luteum and oosorption body. Zool. Anz., 217(1/2): 103-115.
20. Sihag, R.C. 1986 g. Why does the alfalfa pollinating sub-tropical bee, Megachile flavipes make false nesting? Zool. Anz., 217(1/2): 228-233.
20. Sihag, R.C. 1986 h. Insect pollination increases seed production in cruciferous and umbelliferous crops. J. Apic. Res., 25 (2): 121-126.
21. Sihag, R.C. & Abrol, D.P. 1986. Correlation and path coefficient analysis of environmental factors influencing flight activity of Apis florea F. J. Apic. Res., 25 (4): 202-208.
22. Sihag, R.C. 1987. A simple apparatus for sampling honey bees from wild bee colonies. Bee World, 68 (4): 179.
23. Sihag, R.C. 1988 a. Characterization of the pollinators of cultivated cruciferous and leguminous crops of sub-tropical, Hisar, India. Bee World, 69 (4): 153-158.
24. Sihag, R.C. 1988 b. Effect of pesticides and bee pollination on seed yield of some crops in India. J. Apic. Res., 27 (1): 49-54.
25. Sihag, R.C. 1988c. Incidence of Varroa, Euvarroa and Tropilaelaps mites in the colonies of honey bee, Apis mellifera L. in Haryana (India). Amer. Bee J., 128(3): 212-213.
26. Abrol, D.P., Kapil, R.P. & Sihag, R.C. 1988. Physiological adaptations of sub-tropical bees in relation to energy intakes. Res. & Dev. Reporter, 5(1/2): 68-70.
27. Sihag, R.C. 1990 a. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F.1. Adaptive response to high temperatures. Indian Bee J., 52(1-4): 36-37.
28. Sihag, R.C. 1990 b. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F.2 Host plant association. Indian Bee J., 52(1-4): 38-40.
29. Sihag, R.C. 1990 c. Seasonal management of honeybee (Apis mellifera) colonies in Haryana. Indian Bee J., 52: 51-56.
30. Sihag, R.C. 1990 d. Megachilid fauna of Haryana re-described. Indian Bee J., 52(1-4): 60-61.
31. Sihag, R.C. 1990 e. Ecology of European honey bee (Apis mellifera L.) in semi-arid sub-tropical climates. 1. Melliferous flora and over-seasoning of the colonies. Korean J. Apic., 5 (1): 31-43.
32. Sihag, R.C. & Kumar, S. 1990. Determining the dose-concentration relationship for bee toxicity experiments. Korean J. Apic., 5 (2): 32-34.
33. Sihag, R.C. 1991 a. Ecology of European honey bee (Apis mellifera L.) in semi-arid sub-tropical climates. 2. Seasonal incidence of diseases, pests, predators and enemies. Korean J. Apic., 6 (1): 16-26.
34. Sihag, R.C. 1991 b. New interactions of ectoparasitic mites in the colonies of honey bee, Apis mellifera L. Korean J. Apic., 6 (1) : 27-30.
35. Sihag, R.C. 1991 c. Methods of domiciling and bee keeping with alfalfa pollinating sub-tropical megachilid bees. Korean J. Apic., 6 (2): 81-88.
36. Sihag, R.C. 1991 d. Some economic estimates of use of pesticides and bee pollination for crop yield. Korean J. Apic., 6 (2): 89-94.
37. Sihag, R.C. 1991 f. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F. 3. Provisioning and foraging activity patterns. Indian Bee J., 53 (1-4): 23-29.
38. Sihag, R.C. 1991 g. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F. 4. Parasites, predators and nest destroyers. Indian Bee J., 53 (1-4): 30-33.
39. Sihag, R.C. 1991 h. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F. 5. Nest recognition and response to nest displacement. Indian Bee J., 53 (1-4): 81-91.
40. Gupta, Mahavir & Sihag, R.C. 1991. Bee repellents: ecology and mode of action. Indian Bee J., 53 (1-4): 1-8.
41. Sihag, R.C. & Singh, M. 1991 a. The honey bee mite, Tropilaelaps clareae Delfinado & Baker. 1. A mite with distinct ectoparasitic characters and mode of life. Indian Bee J., 53 (1-4): 56-67.
42. Sihag, R.C. & Singh, M. 1991 b. The honey bee mite, Tropilaelaps clareae Delfinado & Baker. 2. Symptoms of infestation in the colonies of honey bee (Apis mellifera L.). Indian Bee J., 53 (1-4): 68-72.
43. Sihag, R.C. 1992 a. The yellow banded brown wasp, Vespa orientalis. 1. A predator and colony robber of honey bee (Apis mellifera L) in Haryana (India). Korean J. Apic., 7(1): 32-34.
44. Sihag, R.C. 1992 b. The yellow banded brown wasp, Vespa orientalis. 2. Population density, bee capture efficiency and predation rate on honey bee (Apis mellifera L.). Korean J. Apic., 7(1): 35-38.
45. Sihag, R.C. 1992 c. Utilization of waste stems of sarcandas and castor as nesting tunnels for culturing / keeping wild bee pollinators of some crops. Bioresource Technology, 42 (2): 159-162.
46. Sihag, R.C. 1993 a. The green bee-eater, Merops orientalis orientalis Latham. 1. Seasonal activity, population density, feeding capacity and bee capture efficiency in the apiary of honey bee, Apis mellifera L. in Haryana (India). Korean J. Apic, 8 (1) : 5-9.
47. Sihag, R.C. 1993 b. The green bee-eater, Merops orientalis orientalis Latham. 2. Quantitative losses caused to the colonies of honey bee, Apis mellifera L. in Haryana (India). Korean J. Apic., 8 (1): 10-13.
48. Sihag, R.C. 1993 c. The green bee-eater, Merops orientalis orientalis Latham. III. Efficiency of some control measures. Korean J. Apic., 8(1): 14-17.
49. Sihag, R.C. 1993 d. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F. 6. Crop hosts and pollination potential. J. Apic. Res., 32: 94-101.
50. Sihag, R.C. 1993 e. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F. 7. Nesting preferences and response to nest translocation. J. Apic. Res., 32: 102-108.
51. Sihag, R.C. 1993 f. Behaviour and ecology of the sub-tropical carpenter bee, Xylocopa fenestrata F. 8. Life cycle, seasonal mortality, parasitization and sex ratio patterns. J. Apic. Res., 32: 109-114.
52. Arya, D.R., Sihag, R.C. & Yadav, P.R. 1994 a. Diversity, abundance and foraging activity of insect pollinators of sunflower (Helianthus annuus L.) at Hisar (India). Indian Bee J., 56: 172-78.
53. Arya, D.R., Sihag, R.C. & Yadav, P.R. 1994 b. Role of insect pollinators in seed yield of sunflower (Helianthus annuus L.). Indian Bee J., 56: 179-182.
54. Sihag, R.C. & Rathi, A.1994. Diversity , abundance, foraging behaviour and pollinating efficiency of different bees visiting pigeon pea (Cajanus cajan (L) Millsp.) blossoms. Indian Bee J., 56: 187-201.
55. Sihag, R.C. & Kaur, G. 1994. Colony foraging: An over-view. Indian Bee J., 56: 1-7.
56. Kaur, G. & Sihag, R.C. 1994. Bee flora of India - a review. Indian Bee J., 56: 105-126.
57. Kaur, G. & Sihag, R.C. 1994. Effect of weather factors on the colony foraging of honeybee (Apis mellifera L.). Indian Bee J., 56: 158-162.
58. Gulati, R. & Sihag, R.C. 1996. Medicinal value of honey - a review. Indian Bee J., 58: 139-43.
59. Gulati, R., Gulati, B.R. & Sihag, R.C. 1996. Antibacterial activity of propolis and honey against Staphylococcus aureus and Escherichia coli. Indian Bee. J., 58 (3): 128-130.
60. Priti & Sihag, R.C. 1997. Diversity, visitation frequency, foraging behaviour and pollinating efficiency of insect pollinators visiting cauliflower (Brassica oleracea L. var botrytis cv. Hazipur Local) blossoms. Indian Bee J., 59 (4): 230-237.
61. Rathi, A., Kumari, B., Gahlawat, S., Sihag, R.C. & Kathpal, T.S. 1997. Multiresidue analysis of market honey samples for pesticidal contamination. Pesticide Res. J., 9 (2): 226-230.
62. Priti & Sihag, R.C. 1998. Diversity, visitation frequency, foraging behaviour and pollinating efficiency of insect pollinators visiting carrot (Daucus carota L.var. HC-I) blossoms. Indian Bee J., 60 (I): 1-8.
63. Sihag, R.C., Kumar, S. & Gahlawat, S.K, 1998. Acute contact toxicity of endosulfan and carbaryl insecticides to two honeybee species, Apis mellifera L. and Apis dorsata F. Korean J. Apic., 13 (2): 55-60.
64. Sihag, R.C., Kumar, S & Gahlawat, S.K. 1999 a. Acute contact toxicity of five organophosphate insecticides to two honeybee species, Apis mellifera L. and Apis dorsata F. Korean J. Apic., 14 (1):1-4.
65. Sihag, R.C, Kumar, S & Gahlawat, S.K. 1999 b. Acute contact toxicity of three synthetic parathyroid insecticides to two honeybee species, Apis mellifera L. and Apis dorsata F. Korean J. Apic., 14 (2): 67-70.
66. Sihag, R.C. & Khatkar, S. 1999 a. Diurnal and weekly patterns of nectar sugar concentration in the flowers of eight cultivars of oilseed crops. Ann. Agri-Bio. Res., 4 (2): 251-256.
67. Sihag, R.C. & Khatkar, S. 1999 b. Effect of different environmental factors on the foraging activity of three honeybee species visiting eight cultivars of oilseed crops. Ann. Agri-Bio. Res., 4 (2): 257-261.
68. Sihag, R.C. & Khatkar, S. 1999c. Synchronization of foraging activity of honeybees and flowering / anthesis in oilseed crops. Ann. Agri-Bio. Res., 4 (2): 263-269.
69. Sihag, R.C. & Khatkar, S. 1999 d. Foraging pattern of three honeybee species on eight cultivars of oilseed crops. 1. Diurnal foraging. Intl. J. Trop. Agri., 17: 245-252.
70. Sihag, R.C. & Khatkar, S. 1999 e. Foraging pattern of three honeybee species on eight cultivars of oilseed crops. 2. Foraging during the entire blooming period of the crops. Intl. J. Trop. Agri., 17: 253-261.
71. Sihag, R.C., & Singh, M. 1999 a. Why should the pollinators be conserved? Current Sci., 77(5): 626-627.
72. Sihag, R.C., & Singh, M. 1999 b. Why conserve pollinators (Guest editorial)? Bee World, 80 (30): 113-114.
73. Priti & Sihag, R.C. 1999. Diversity, visitation frequency, foraging behaviour and pollinating efficiency of different insect pollinators visiting coriander (Coriandrum sativum. .L.) blossoms. Asian Bee J., 1 (II) : 36-42.
74. Priti & Sihag, R.C. 2000. Diversity, visitation frequency, foraging behaviour and pollinating efficiency of different insect pollinators visiting fennel (Foeniculum vulgare L). blossoms. Asian Bee J., 2: 57-64.
75. Kumari, B., Gahlawat, S., Rathi, A., Sihag, R.C., Kathpal, T.S. 2000. Dissipation of systemic organophorus insecticides in mustard (Brassica juncea) flowers. J. Apic Res., 39(3/4): 179-180.
76. Priti , Mishra,R.C. & Sihag, R.C. 2001. Role of insect pollination in seed production of radish (Raphanus sativus L.). Seed Research, 29 (2): 231-234.
77. Sihag, R.C. & Verma, S. 2001. Acute contact and stomach toxicity of endosulfan and carbaryl insecticides to the little honeybee, Apis florea F. Asian Bee J. 3: 13-19.
78. Sihag, R.C. 2001. Why should beekeeping be utilized as an input in agriculture? Current Sci., 81 (12): 1514-1516.
79. Sihag, R.C. & Verma, S. 2002. Acute contact and stomach toxicity of five organophosphate insecticides to the little honeybee, Apis florea F. Asian Bee J. 4: 13-18.
80. Gahlawat, S.K., Narwania, S.K., Sihag, R.C. & Ombir. 2002. Studies on the diversity, abundance, activity duration and foraging behaviour of insect pollinators of cucumber (Cucumis sativus L.) at Hisar. Korean J. Apic. 17 (2): 69-76 (S. Korea).
81. Gahlawat, S.K., Narwania, S.K., Ombir & Sihag, R.C. 2002. Pollination studies on Pracitrullus fistulosus at Hisar, India. Ecoprint, 9 (1):1-6).
82. Sihag, R.C. & Chaudhary, N. 2003. Role of bee pollinators in increasing seed / fruit yield of vegetable crops. Korean J. Apic., 18 (1): 61-66.
83. Narwania, S.K., Gahlawat, S.K., Ombir & Sihag, R.C. 2003. Diversity, abundance, foraging rates and pollinating efficiency of insects visiting wanga (Cucumis melo s.sp.melo) blossoms at Hisar (India). Korean J. Apic., 18 (1): 29-36.
84. Chaudhary, N. & Sihag, R.C. 2003. Diversity, foraging behavior and foraging efficiency of different pollinators visiting onion (Allium cepa L.) blossoms. Korean J. Apic. 18 (2): 103-108.
85. Sihag, R.C., Kumar, S & Gahlawat, S.K., 2004. Acute oral toxicity of different insecticides to two honeybee species, Apis mellifera L. and Apis dorsata F. Korean J. Apic., 19 (2): 125-132.
86. Sihag, R.C., Gahlawat, S.K., Dhillon, M.K. & Yadav, J.S. 2004. Pollination in oilseed crop, taramira (Eruca sativa Mill.): effects of crop management practices, plant population and number of honeybee colonies on various yield parameters. Asian Bee J. 6 (1&2): 52-65.
87. Sihag, R.C. 2008. A new model on honeybee repellency for their safety against pesticides. Korean J. Apic., 23 (3): 167-170.
88. Chaudhary, N., Sihag, R.C. & Pandey, M.C. 2009. Relative abundance, diversity and dominance concentration of two honeybee species on three concurrently flowering crops, onion (Allium cepa L.), carrot (Daucus carota L.) and fennel (Foeniculum vulgare L.). Pestology, XXXIII (7): 9-13.
89. Mishra, S. & Sihag, R.C. 2009 a. Efficacy of some chemicals as repellents against two honey bee species, Apis mellifera L. and Apis florea F. in semi-field trials. J. Apic. Sci. 53 (1) : 53-66.
90. Mishra, S. & Sihag, R.C. 2009 b. Efficacy of some chemicals as repellents against two honey bee species, Apis mellifera L. and Apis florea F. in field trials. J. Apic. Sci. 53 (2) : 21-29.
91. Mishra, S. & Sihag, R.C. 2010. Efficacy of some chemicals and additives as bee repellents against two honey bee species, Apis mellifera L. and Apis florea F. in semi-field trials. J. Apic. Sci., 54 (1): 5-18.
92. Monika Tomar, R. C. Sihag, Ritu Sangwan and Anurag Sangwan. 2010. Floral biology of tulsi (Ocimum sanctum Linn). Annals of Agri-Bio research, 15(2): 101-104.
93. Chaudhary, N., Sihag, R.C. , Saharawat, Y.S. & Pandey, M.C. 2010. Energetic reward - A determining factor for inter-varietal preference of honeybees foraging on fennel (Foeniculum vulgare L.). Progressive Horticulture, 42 (2): 213-216.
94. Sihag, R.C. & Wadhwa, N. 2011 Floral and reproductive biology of Sarpagandha, Rauvolfia serpentina (Gentianales: Apocynaceae) in semi-arid environment of India. J. Threatened Taxa, 3 (1): 1432-1436.
95. Sihag, R.C., & Gupta, M. 2011. Development of an artificial pollen substitute / supplement diet to help tide the colonies of honeybee ( Apis mellifera L.) over the dearth season. J. Apic. Sci., 55 (2): 15-29.
96. Sihag, R.C. 2012. Bee diversity for floral diversity. J. Nature Sci. & Sustainable Technol., 6(4): 271-276.
97. Wadhwa, N. & Sihag, R.C. 2012. Psychophilous mode of pollination predominates in sarpagandha (Rauvolfia serpentina). J. Entomol., 9 (4): 187-207.
99. Sihag, R.C. and Gupta, M. 2013. Testing the effects of some pollen substitute diets on colony build up and economics of beekeeping with Apis mellifera L. J. Entomol., 10 (3): 120–135.
98. Sihag, R.C. and Gupta, M. 2014. Testing the effects of some pollen substitute diets - an addendum to Sihag and Gupta (2013). J. Entomol., 11 (2): 109–110.
100. Sihag, R.C. 2014. Phenology of migration and decline in colony numbers and crop hosts of giant honeybee (Apis dorsata F.) in semiarid environment of Northwest India. J. Insects, 2014, pp: 1-9,
Article ID 639467, doi: http://dx.doi.org/10.1155/2014/639467-
101. Wadhwa, N. & Sihag, R.C. 2015. Melittophilous mode of pollination predominates in European plum (Prunus domestica L.) in the semi-arid environment of Northwest India. Asian Journal of Agricultural Research, 9 (5): 189-207.
(ii) Publications in the refereed Conference Proceedings
102. Sihag, R.C. & Kapil, R.P. 1983. Foraging strategies of honeybees as determined by quality and quantity of nectar. In: Proceedings of 5th International Symposium on Pollination, Versailles, pp: 51-59.
103. Sihag, R.C. & Kapil, R.P. 1986. Seasonal emergence model of megachilid bees. In: Pollination Biology: An Analysis, (Ed.: R.P.Kapil). Inter- India Publication, New Delhi, pp: 131-45).
104. Sihag, R.C. 1990. Differential attractiveness of two cruciferous plants to honeybees. In: Proceedings of 1th International Congress of IUSSI, Bangalore, pp: 434-436.
105. Rathi, A . & Sihag, R.C. 1993 a. Foraging modes and foraging rates of different bee pollinators of pigeon pea (Cajanus cajan (L) Millsp). In: Pollination in Tropics, (Eds.: G. K. Veeresh, R. Uma Shankar and K. Ganeshaiah), IUSSI - Indian Chapter, Bangalore, pp: 93-95.
106. Rathi, A.& Sihag, R.C. 1993 b. Differential attractiveness of Brassica campestris L. and Cajanus cajan (L) Millsp to two honey bee species. In: Pollination in Tropics (Eds.: G.K.Veeresh, R.Uma Shankar and K. Ganeshaiah), IUSSI-Indian Chapter, Bangalore, PP: 113-115.
107. Rathi, A. & Sihag, R.C. 1993 c. Effect of the bee, Chalicodoma lanata F. on pollination and seed yield of pigeonpea (Cajanus cajan (L) Millsp). In: Pollination in Tropics (Eds.: G. K. Veeresh, R. Uma Shankar and K. Ganeshaiah), IUSSI- Indian Chapter, Bangalore, pp: 175-177.
108. Sihag, R.C. 1993 a. Management of some sub-tropical megachilid bees for pollination of alfalfa (Medicago sativa L.) and pigeon pea (Cajanus cajan(L) Millsp). In: Pollination in Tropics, (Eds.: G. K. Veeresh, R. Uma Shankar and K. Ganeshaiah), IUSSI- Indian Chapter, Bangalore, pp: 229-232.
109. Sihag, R.C. 1993 b. Pollination problems in two oilseed crops, toria (Brassica campestris L) and sunflower (Helianthus annuus L.) in Southwest Haryana In: Pollination in Tropics (Eds.: G. K. Veeresh, R. Uma Shankar and K. Ganeshaiah), IUSSI- Indian Chapter, Bangalore, pp: 258-261.
110. Sihag, R.C. 1993 c. Population dynamics of andrenoid pollinators at sub-tropical Hisar (India). In: Pollination in Tropics, (Eds.: G. K. Veeresh, R. Uma Shankar and K. Ganeshaiah), IUSSI- Indian Chapter, Bangalore, pp: 270-273.
111. Sihag, R.C. 1994. Pollination of Asian crops. J. Entomol. Zool., 8: 158-160.
112. Sihag, R.C. 1995. Differential attractiveness of two cruciferous vegetable crops to honeybees. In: Pollination Biology: Environmental Factors and Pollination (Ed.: R.C.Sihag ), Rajendra Scientific Publishers, Hisar, PP: 41-47.
113. Sihag, R.C. & Rathi, A. 1995. Field toxicity of two insecticides to the bee pollinators of pigeon pea. In: Pollination Biology: Environmental Factors and Pollination (Ed.: R. C. Sihag), Rajendra Scientific Publishers, Hisar, PP: 137-145.
114. Sihag, R.C. & Kaur, G.1996. Beekeeping with Apis mellifera L in semi-arid sub-tropical climates of Haryana. In: Proceedings of National Beekeeping Experts and Exchange Conference, Ludhiana, pp: 7-10.
115. Sihag, R.C. 1996. Pollination of Indian crops: Present status and future needs. In: Proceedings of National Beekeeping Experts and Exchange Conference, Ludhiana, pp: 37-43.
116. Sihag, R.C. 1999. Pollination of crops by honeybees for increased seed production. In: Recent Advances in Biosciences for Sustainable Food Security (Eds.: R. C. Sihag et al.). AAREM, CCS HAU, Hisar, pp: 63-65.
117. Sihag, R.C. & Gahlawat, S.K. 1999. Beekeeping for producing honey - A food supplement. In: Recent Advances in Biosciences for Sustainable Food Security, (Eds.: R. C. Sihag et al.). AAREM, CCS HAU, Hisar, pp: 71-73.
118. Priti & Sihag, R.C. 2000. Diversity, visitation frequency, foraging behaviour and pollinating efficiency of insect pollinators visiting turnip blossoms. In: Asian Bees and Beekeeping: Progress of Research and Development, (Eds.: M. Matsuka et al.). Oxford & IBH Publ. Co. Pvt. Ltd. New Delhi, pp: 190-192.
119. Sihag, R.C. 2000 a. Eco-biology of the little honeybee (Apis florea F.) in semi arid-sub-tropical climates of India In: Asian Bees and Beekeeping: Progress of Research and Development, (Eds.: M. Matsuka et al.). Oxford & IBH Publ. Co. Pvt Ltd. New Delhi, pp: 46-49.
120. Sihag, R.C. 2000 b. Eco-biology of the giant honeybee (Apis dorsata F.) in semi-arid-sub-tropical climates of India In: Asian Bees and Beekeeping: Progress of Research and Development, (Eds.: M. Matsuka et al.). Oxford & IBH Publ. Co. Pvt Ltd. New Delhi, pp: 50-52.
121. Sihag, R.C. 2000 c. Management of bees for pollination of crops. In: Asian Bees and Beekeeping: Progress of Research and Development, (Eds.: M. Matsuka et al.). Oxford & IBH Publ. Co. Pvt Ltd. New Delhi, pp: 163-165.
122. Sihag, R.C. 2000 d. Management of Apis mellifera in semi-arid sub-tropical climates of India. In: Asian Bees and Beekeeping: Progress of Research and Development, (Eds.: M. Matsuka et al.). Oxford & IBH Publ. Co. Pvt Ltd. New Delhi, pp: 99-101.
123. Sihag, R.C. 2004. Pollination of crops by bees - why and how? In: Proceedings of 7th Asian Apiculture Association Conference, Los Banos, Philippenes, pp: 53-56.
(iii) Book Chapters
124. Sihag, R.C. 1985 a. Floral biology, melittophily and pollination ecology of cultivated cruciferous crops. In: Recent Advances in Pollen Research (Ed.: T. M. Varghese). Allied Publishers, New Delhi, pp: 241-268.
125. Sihag, R.C. 1985 b. Floral biology, melittophily and pollination ecology of cultivated umbelliferous crops. In: Recent Advances in Pollen Research (Ed.: T.M. Varghese). Allied Publishers, New Delhi, pp: 269-277.
126. Sihag, R.C. 1985 c. Floral biology, melittophily and pollination ecology of cultivated onion crop. In: Recent Advances in Pollen Research (Ed.: T. M. Varghese). Allied Publishers, New Delhi, pp: 278-284.
127. Sihag, R.C. 1995 a. Pollination, pollinators and pollination modes: Ecological and economic importance. In: Pollination of Cultivated Plants in Tropics (Ed.: D. W. Roubik). F.A.O. Rome, pp: 157-160.
128. Sihag, R.C. 1995 b. Management and utilization of two honey bees in the tropics. In: Pollination of Cultivated Plants in Tropics (Ed.: D. W. Roubik). F.A.O. Rome, pp: 154-157.
129. Sihag, R.C. 1995 c. Management of sub-tropical solitary bees for pollination. In: Pollination of Cultivated Plants in Tropics (Ed.: D. W. Roubik). F.A.O. Rome, pp: 157-160.
130. Sihag, R.C. 1995 d. Pollination of Asian crops. In: Pollination Biology: Environmental Factors and Pollination (Ed.: R.C.Sihag). Rajendra Scientific Publishers, Hisar, PP: 90-124.
131. Sihag, R.C. 1995 e. Use of pesticides and bee pollination for crop yield: Why and how? The Asiatic Hive Bee: Apiculture, Biology and Role in Sustainable Development in Tropical and Sub-tropical Asia (Ed.: P. G. Kevan). Enviroquest Ltd., Cambridge, Ontario, PP: 199-206.
132. Sihag, R.C. & Kaur, G. 1995. Floral biology, melittophily and pollination ecology of sunflower. In: Pollination Biology: Pollination, Plant Reproduction and Crop Seed Production (Ed.: R. C. Sihag). Rajendra Scientific Publishers, Hisar, pp: 69-89.
133. Sihag, R.C. & Mishra, R.C. 1995. Crop pollination and Apis cerana. In: The Asiatic Hive Bee: Apiculture, Biology and Role in Sustainable Development in Tropical and Sub-tropical Asia (Ed.:P.G. Kevan). Enviroquest Ltd., Cambridge, Ontario, pp: 135-142.
134. Sihag, R.C. & Kaur, G.1997. Pollination mechanisms and syndromes. In: Pollination Biology: Basic and Applied Principles (Ed.: R. C. Sihag ). Rajendra Scientific Publishers, Hisar, PP: 19-37.
135. Sihag, R.C. & Shivrana, S. 1997. Foraging behaviour and strategies of the flower visitors. In:Pollination Biology: Basic and Applied Principles (Ed.: R.C. Sihag). Rajendra Scientific Publishers, Hisar, PP: 53-73.
136. Abrol, D.P. & Sihag, R.C. 1997. Pollination energetic. In: Pollination Biology: Basic and Applied Principles (Ed.: R. C. Sihag ). Rajendra Scientific Publishers, Hisar, PP: 75-98.
137. Sihag, R.C. & Priti.1997. Environmental factors and pollination. In: Pollination Biology: Basic and Applied Principles (Ed.: R. C. Sihag ). Rajendra Scientific Publishers, Hisar, PP: 99-131.
138. Sihag, R.C. 1997 a. Pollinator-pesticides interaction, In : Pollination Biology: Basic and Applied Principles (Ed.: R. C. Sihag). Rajendra Scientific Publishers, Hisar, PP: 133-142.
139. Sihag, R.C. 1997 b. Utilization of honeybees as pollinators of crops. In: Pollination Biology: Basic and Applied Principles (Ed.: R. C. Sihag). Rajendra Scientific Publishers, Hisar, PP: 143-152.
140. Sihag, R.C. 1997 c. Utilization of non-Apis bees as pollinators of crops. In: Pollination Biology : Basic and Applied Principles (Ed.: R. C. Sihag). Rajendra Scientific Publishers, Hisar, PP: 152-169.
141. Sihag,R.C. 1997 d. Determining the efficiency of pollinators : In: Pollination Biology : Basic and Applied Principles (Ed.: R. C. Sihag ). Rajendra Scientific Publishers, Hisar, PP: 171-186.
142. Sihag, R.C. 1997 e. Determining the required number of pollinators for crop pollination. In : Pollination Biology: Basic and Applied Principles (Ed.: R. C. Sihag). Rajendra Scientific Publishers, Hisar, PP: 187-199.
143. Sihag, R.C. 1997-98. Wild Apis and non-Apis bees: their behaviour, management and utilization In : Perspectives in Indian Apiculture (Ed.: R. C. Mishra). Agro-Botanic, Bikaner, pp : 248-264.
144. Gahlawat, S.K., Chhabra, B., Jain, K.L., Gupta, R.K., Dhillon, M. & Sihag, R.C. 2006. A review on the honey: a by-product of bees (Insecta : Hymenoptera) - nutritional and medicinal aspects. In : Perspectives in Ecology and Reproduction ( Ed.: V. K. Gupta & A. K. Verma). Daya Publishing House, Delhi, pp: 102 – 126.
145. Sihag, R.C. 2007. Agro-environment and honey bees. In: Environmental Pollution and Global Health, (Eds.: R. P. Saharan & P. K. Sarin ). Publ. Mutagenic Society of India, pp
(iv) Books
146. Mishra, R.C. & Sihag, R.C. 1987. Apicultural Research in India. An AICRP (Honeybees) Publication, Haryana Agril. Univ. Press, Hisar, 120 p.
147. Sihag, R.C. (Ed.). 1995 a. Pollination Biology: Environmental Factors and Pollination. Rajendra Scientific Publishers, Hisar, 195 p.
148. Sihag, R.C. (Ed.). 1995 b. Pollination Biology: Pollination, Plant Reproduction and Crop Seed Production. Rajendra Scientific Publishers, Hisar, 210 p.
149. Sihag, R.C. (Ed.). 1997. Pollination Biology: Basic and Applied Principles. Rajendra Scientific Publishers, Hisar, 215 p.
150. Sihag, R.C., Patel, R.K. & Singh, M. (Eds.).1999. Recent Advances in Biosciences for Sustainable Food Security. AAREM, CCS HAU, Hisar, 290 p.
(A. Publications on Apiculture / Agriculture / Crop Pollin...)
B. Publications on Vermiculture
151. Singh, M. & Sihag, R.C. 1999. Role of vermiculture biotechnology in sustainable agriculture. In: Recent Advances in Biosciences for Sustainable Food Security, (Eds.: R. C. Sihag et al.). AAREM, CCS HAU, Hisar, pp: 59-62.
152. Gupta, R.K., Sihag, R.C. and Katyal, D.K. 2002. Comparative study of effect of vermicompost formed by different combinations of carbonic waste as brinjal and okra. Proc. 11th Nat. Symp. Environment, Udaipur, from June 5-7, 2002. pp: 343-345.
153. Katyal, D.K., Sihag, R.C. and Gupta, R.K. 2003. Studies on the effect of earthworm, Eisenia foetida on the quality of vermicompost prepared from cowdung. In: Proc. 12th Natl. Symp. Environment, H.N. Bahuguna Garhwal University, Tehri Garhwal, pp: 373-376.
154. Saini, V.K., Sihag, R.C., Sharma, R.C., Gahlawat, S.K. & Gupta., R.K. 2008a. Relative efficacy of two methods of vermicomposting for bio-degradation of organic wastes. Internl. J. Environ. Waste Manage., 2(2): 102-110.
155. Saini, V.K., Sihag, R.C., Sharma, R.C., Gahlawat, S.K. & Gupta.,R.K. 2008b. Biodegradation of water hyacinth, sugarcane bagasse and rice husk through vermicomposting. Internl. J. Environ. & Waste Manage., 2(6): 601-609.
156. Saini, V.K., Sihag, R.C., Sharma, R.C., Gahlawat, S.K. & Gupta., R.K. 2010. Relative efficacy of two species of earthworms in biodegradation of organic wastes under semi-arid subtropical conditions of North-West India. Wld. Rev. Sci. Technol. & Sustain. Dev., 7(3): 259-270.
(B. Publications on Vermiculture 151. Singh, M. & Sihag...)
C. Publications on Fisheries / Fish Pathology / Aquaculture
157. Gahlawat, S.K., Gupta, R.K., Yadava, N.K., Jain, K.L.,Sihag, R.C. & Sabhlok, V.P. 2006. Manual of Experimental Ichthyology. Daya Publishing House, Delhi, pp: 1-290.
158. Gahlawat, S.K., Gupta, R.K., Sihag, R.C. & Yadav, N.K. 2006. Latest scenario of fish diseases in India. In : Perspectives in Ecology and Reproduction (Eds.: V. K. Gupta & A. K. Verma). Daya Publishing House, Delhi, pp: 135 – 143.
159. Sharma,P., Gahlawat, S.K., Sihag, R.C., Chauhan, M. 2007. Indduction of Mx gene expression in the Indian major carp, rohu (Labeo rohita Linnaeus). Indian J. Fisheries, 54 (3): 321-326.
160. Dahiya,T.P. & Sihag, R.C. 2009. Incidence of vibriosis in the Indian magur (Clarias batrachus L.) in saline water ponds of Haryana - A new report from India. The Ecotech, 1 (2) : 116-121.
161. Dahiya,T.P., Kant, R. & Sihag, R.C. 2009. Pathogenicity of bacterial isolates from catfish (Clarias batrachus), the Indian magur. The Biosphere, 1 (1): 42-46.
162. Kant, R., Dahiya, T. & Sihag, R.C. 2009. Genetic diversity among fish pathogens using 16S-rRNA primer. The Biosphere, 1(1): 60-64.
163. Dahiya,T., Kant,R., & Sihag, R.C. 2010. Use of probiotics as an alternative method of disease control in aquaculture. The Biosphere, 2 (1): 52-57.
164. Jakhar, V., Gahlawat, S.K. & Sihag, R.C. 2010a. Review article on bacterial diseases in freshwater prawn, Macrobrachium rosenbergii. The Ecotech, 2 (1): 39-45.
165. Jakhar, V., Gahlawat, S.K. & Sihag, R.C. 2010b. Isolation and Characterization of coccus shaped bacteria causing tailrot disease in freshwater prawn, Macrobrachium rosenbergii (de Man) in Haryana, India. The Ecotech, 2 (1): 49-53.
166. Jakhar, V., Gahlawat, S.K. & Sihag, R.C. 2010a. A new report of bacterial necrosis disease in freshwater prawn (Macrobrachium rosenbergii (de Man)) in Haryana. The Ecosphere, 1 (1): 27-30.
167. Jakhar, V., Gahlawat, S.K. & Sihag, R.C. 2010b. Methodology for the isolation and identification of bacterial pathogens. The Ecosphere, 1 (1): 57-69.
168. Ohlyan, S., Sihag, R.C. & Yadava, N.K. 2011. Efficacy of different aquarium designs fabricated for breeding the guppy. J. Nature Sci. & Sustainable Technol., 5 (4): 243-253.
169. Ohlyan, S., Sihag, R.C. & Yadava, N.K. 2012a. Courtship behaviour and mate choice in guppies - Tactics and strategies. J. Nature Sci. & Sustainable Technol., 6 (3): 151-167.
170. Ohlyan, S., Sihag, R.C. & Yadava, N.K. 2012b. Time budget of the guppy under different ecophysiological conditions. J. Nature Sci. & Sustainable Technol., 6(4): 255-264.
171. Sihag, R.C., & Sharma, P. 2012. Probiotics: the new ecofriendly alternative measures of disease control for sustainable aquaculture. J. Fisheries & Aquat. Sci.. 7(2): 72-103.
172. Dahiya, T., Gahlawat, S.K. and Sihag, R.C. 2012. Elimination of pathogenic bacterium (Micrococcus sp.) by the use of probiotics. Turkish J. Fisheries & Aquat. Sci. 12:185-187.
173. Dahiya, T., Sihag, R.C. and Gahlawat, S.K. 2012. Effect of probiotics on the haematological parameters of Indian magur (Clarius batrachus L.). J. Fish. Aquat. Sci.. 7(4): 279-290.
174. Dahiya, T.P., Kant, R., Singh, G. and Sihag, R.C. 2012. Elimination of pathogenic bacterium, Aeromonas hydrophila by the use of probiotics. J. FishcomeriesSciences.com., 6(3): 209-214.
175. Jakhar, V., Sihag, R.C. & Gahlawat, S.K. 2013. Survey and characterization of diseases in giant freshwater prawn (Macrobrachium rosenbergii de Man) in Haryana. Indian J. Anim. Res.47 (6): 479-485.
176. Sharma, P. and Sihag, R.C. 2013. Pathogenicity test of bacterial and fungal fish pathogens in Cirrihinus mrigala infected with EUS disease. Pakistan J. Biol. Sci., 16 (20): 1204-1207.
177. Sharma, P. and Sihag, R.C. and Minakshi, P. 2013. Role of probiotics in controlling the epizootic ulcerative syndrome disease in mrigal (Cirrihinus mrigala Ham.). Microbial, Plant and Animal Research, pp. 141–148 (Book Chapter).
178. Jakhar, V., Sihag, R.C. and Gahlawat, S.K. 2013. Effect of probiotics on growth and survival of giant freshwater prawn (Macrobrachium rosenbergii de Man). Research on Crops, 14 (4): 1264–1268.
179. Sharma, P. and Sihag, R.C. Bhardwaj, A. 2013. Isolation and identification of pathogenic bacteria and fungi isolated from skin ulcers of Cirrhinus mrigala. Indian Journal of Animal Research, 47 (4): 283–291.
180. Sharma, P., Sihag, R.C. and Gahlawat, S.K. 2013. Relative efficacy of two probiotics in controlling the epizootic ulcerative syndrome disease in mrigal (Cirrhinus mrigala Ham.) Journal of Fisheries and Aquatic Science, 8 (2): 305–322.
181. Godara, S. Sihag, R.C. and Gupta, R. 2015a. Effect of pond fertilization with vermicompost and some other manures on the growth performance of Indian major carps. Journal of Fisheries and Aquatic Science, 10 (3): 199-211.
182. Godara, S. Sihag, R.C. and Gupta, R. 2015b. Effect of pond fertilization with vermicompost and some other manures on the hydrobiological parameters of treated pond waters. Journal of Fisheries and Aquatic Science, 10: 212-231.
183. Godara, S. Sihag, R.C. and Gupta, R. 2015b. Effect of pond fertilization with vermicompost and some other manures on the pathogenic bacterial populations of treated pond waters. Research Journal of Microbiology, 10: 230-245.
(C. Publications on Fisheries / Fish Pathology / Aquacultu...)
D. Publications on Mammals
184. Gahlawat, S.K., Gupta, R.K., Sihag, R.C. and Gupta R.C. 2005. Qualitative behavioral observations on rhesus monkeys, Macaca mulatta (Zimmerman). In: Perspectives in Animal Ecology and Reproduction Vol.III (Eds:. B. K. Gupta, A. K. Verma and J. P. Sharma). Daya Publishing House, New Delhi, pp: 299-303.
185. Gahlawat, S.K., Gupta, R.K., Sihag, R.C. and Gupta R.C. 2006. Studies on the daily activities of rhesus monkeys, Macaca mulatta (Zimmerman) in Saraswati and Veer Sonti Forests of Haryana. In: Perspectives in Animal Ecology and Reproduction Vol. III (Eds. V.K. Gupta and Anil K. Verma and J. P. Sharma). Daya Publishing House, New Delhi, pp: 265-271.
(D. Publications on Mammals 184. Gahlawat, S.K., Gupta,...)
Respect for all religions
Uniform civil code, equal opportunity to all,
Climate change, loss of biodiversity, global food security,trade disparity, education for all, struggle among Nations for the territories, nuclear disarmament, religious tolerance and international peace are some of the issues.
Quotations: Why humanity has taken back seat in the civilized society? Why no care for the conservation of resources? Why not global food security? Why trade disparity among Nations? Why not education for all? Why struggle among Nations for the territories? Why not nuclear disarmament? Why not religious tolerance? Why international disputes, why not dialogues?.
Fellow: Royal Entomological Society (London)
Chairperson : Pollination Section of Asian Apicultural Association (Japan) from 1992-2008.
Member : Associations/Societies
i) Board of Management, All Indian Beekeepers’ Association (1990- 2004).
ii) Executive Committee: International Union for the Study of Social Insects - Indian Chapter (1990-94)
Member : Web-Networks
i) Green peace Network
ii) National Geographic Society Network
iii) The Nature Conservancy Network
iv) Defenders of Wildlife Network
v) Defenders of Wildlife Action Fund Network
vi) National Wildlife Federation Network
vii) World Wildlife Fund Network
viii) Rainforest Action Network
ix) Elephant Lovers Group Network
x) Help the Honeybees Network
xi) Invertebrate Pollinator Network of South Asia (IPNSA),
xii) The invertebrate network of ZOO/CBSG.
Cheerful, happy, ever smiling, self contended, self confident, enthusiastic, hardworking, laborious and target oriented person.
Physical Characteristics: Height, 5' 8''; weight, 68 kg; Whitish complexion, smart and dashing person.
Quotes from others about the person
Mild and calm person.
Wife: Nirmala (Boora) Sihag, March 29, 1962; Son: Ravi Sihag; Daughter-in-Law: Meenakshi (Lamba) Sihag, Grand son: Jay Vardhan Sihag; Grand son: Yash Vardhan Sihag.