A former lecturer in English in Vidyasagar College (Calcutta), Comrade Ghosh was known to have always taken leftist position in his political views. Prior to the Naxalbari upsurge, he was an important organizer of the lecturer’s cell of the CPI (M). His all round political activity started after the Naxalbari upsurge in 1967. He joined the CPI (M-L) in 1969 and was elected to the central committee in 1970. Comrade Ghosh was the Editor of the CPI (M-L) central organ – Liberation, and became its Editor-in-Chief in 1971. He was also given the responsibility of Deshabrati, the Bengali journal of the party, when Comrade Saroj Dutta died martyr on 5th August, 1971. After comrade Charu Majumdar’s demise, Comrade Ghosh wrote a self critical review under the pen name Prabhat Jana, that was published in Frontier, a reputed English political weekly. In 1978, he and comrade Sharma (Jagjit Singh Sohal) formed the COC, CPI (M-L), that upheld the line of Comrade Charu Majumdar, but at the same time, criticized some his formulations like – annihilation, authority, etc. Nowadays he keeps himself busy in writing important articles. His books, The Indian Big Bourgeoisie and India and the Raj (two volumes) are considered as rare contributions in the field of Indian Economics and Political Studies.