Dhiraj Choudhury was born on 1936 at then Bengal, now Bangladesh. He was a student of Government College, Darjeeling and the Principal Dr. K. D.Ghosh encouraged him to follow up his dreams to become an artist. Later he was admitted to College of Arts and Crafts, Calcutta and Delhi Polytechnic (Delhi College of Art). He has taught from 1962 to 1996 in Women Polytechnic and Department of Painting, Delhi College of Art, University of Delhi. He has ameliorated Calcutta Painters Society by being a member, of Artists Forum, Society of Contemporary Artists, AIFACS, New Delhi. Dhiraj Choudhury has founded 'Quartet Artist' and 'Line', a group devoted to drawing.