Bachelor of Science, Allahabad Central University, India, 1979. Master of Science, Allahabad Central University, India, 1981. Doctor of Philosophy, Allahabad Central University, India, 1985.
Certified in Russian language, Indian Institute of Technology, Roorkee, 1995.
Lecturer chemistry University Meerut, India, 1990—1992. Research associate Indian Institute of Technology, Roorkee, 1992—1997. Postdoctoral fellow Hebei University, Baouding City, China, 1997—1998, Institute National Research Agronomy, Montpellier, France, 1998—1999.
Reader chemistry University Guyana, Georgetown, Guyana, 1999—2005. Visiting scholar University South Dakota, Vermillion, 2002—2002, Florida Institute of Technology, Melbourne, since 2005. Vice chairman Caribbean Academy of Sciences, Georgetown, 2000—2005.
Academy chairman University Guyana, Georgetown, 2003—2005. Member advisory board Asian Journal Chemistry, Shahibabad, India, 2004.
Member Hindu Mandir, Georgetown, Guyana, 1999—2005. Member of American Chemical Society, International Society Studies on Origin of Life, Royal Society Chemistry.
Married Jai Devi Tewari, June 20, 1984. 1 child Pravesh Kumar.