Born in 1936, Suhas Roy studied at the Indian College of Arts and Draughtsmanship, Calcutta. In 1956, he travelled to France on a Government of France French Cultural Scholarship. In Paris, he studied at the Atelier 17 and the Ecole National Superiere des Beaux Arts. Between 1959-73, he was head of the Graphic Department at his alma mater. In 1974, he joined Kala Bhavan, Santiniketan, as a lecturer in painting.

He has held numerous solo shows across the country and his works have been exhibited at various print exhibitions and biennales abroad. His paintings were included in important exhibitions like the Asian Graphic Prints Traveling Exhibition, USA, the Tokyo Print Biennale, Japan; Contemporary Indian Art, Yugoslavia; Romania, Czechoslovakia, Hungry, The Central Institute of Modern Art, New Delhi, and the National Gallery of Modern Art, New Delhi.

Roy retired in 1996, as the head of the Department of Painting at Kala Bhavan Santiniketan.

He lives and works in Kolkata.