Initially his painting was realistic in nature but later it went through a drastic change and he was intently engrossed in giving new dimension to his art. This was the time when he preferred water colours. Artists Gopal Ghosh and Zainul Abedin influenced him to a great extent with their use of a simple way with warm colours, and life was depicted through this media, especially natural creations and phenomena of the cosmos.
In 1962, Amitabha went for a tour of Europe and America for about six months. Later in Kolkata, in collaboration with the U.S.I.S., he had solo shows at many venues which were highly praised everywhere. Later, he shifted his themes of reality in factual life and started depicting more ornate themes. The bright colours were replaced by dimmer, faded ones. His experiments into different avenues of art, however, continued until the 1970s.
There is a personal philosophy in the meaning that is expressed from experiences in real life through individual feelings. He is still constantly engrossed with his tireless strivings for the perfection of his art form, with a dreamlike passion for his art.
Government College of Art and Craft, Kolkata (1948)
16 solo shows of his graphics and paintings were held so far in principal cities in India and in Waterloo, Toronto, North Dakota and New York.
He participated all the major group exhibitions in India including National Exhibition and seven International Exhibitions in U K, Australia, East Germany, Amsterdam, Cuba, New Delhi, Bhopal. He also participated at Graphic Workshops in USA, New Delhi, Bengaluru, Vadodara, Santiniketan.
National Award, Birla Academy Award, AIFACS Award, Chandigarh Museum Award, Group 8 Award, Lifespan Achievement Award from Rabindra Bharati University & Lifetime Achievement Award form Govt. of West Bengal
National Gallery of Modern Art and Lalit Kala Akademi in New Delhi Library of Congress, Washington D C and other prestigious public and private collections in India and abroad. - fHis works are a part of various public and private collections.