Abani Kumar Dey graduated from Calcutta University in 1923 as Bachelor of Science. He got D.I.C and Doctor of philosophy degrees in 1932 from London University.
Abani Kumar Dey had done research in Palaentology and Petrology. Joined Geological Survey of India in 1923. He was a petrologist during 1945-1947, also worked as part-time professor of Geology at Presidency College in Calcutta(1945-1947). He was Superintending Geologist during 1947-1956, also Director of Geology at Oil and Natural Gas Commission in 1956-57. Since 1957 was a professor and head of Geology Department, Utkal University.