Jahar Dasgupta was born in Jamshedpur (Jharkhand) in the year 1942. His father Mr. Narendranath Dasgupta was a famous scientist. Narendranath admitted him to Kalabhavan, Shantiniketan and Jahar took his primary lessons under legendary mentors like Nandalal Bose, Ramkinkar Baij, and Binod Bihari Mukherjee. He passed from Visva Bharati in the year 1964.
He is one of the main founders of the Painters Orchestra. The seven young Indian artists establish this art organization in 1969 and still it is going strong. Apart from him the other famous artist Partha Pratim Deb was one of the members.
He exhibited his paintings in the very famous Jehangir Art Gallery, Lalit Kala Academy, Academy of Fine Arts in the earlier stage of his career. His works were not successful at the beginning in terms of money business, but his works were always been noticed by the critics. His works have always been very bold. In the first stage of his career he was mainly worked with Oil Painting. Protest against the evil power and fight against all odds reflects in his canvases. He was so successful in this concept.