Com. Subrata Chakraborty joined CPI(ML) in the tumultuous days of 1968 after the peasant upsurge of 1967, remaining underground. In 1971 he got a job with Military Engineering service (MES), but left it after a few months. After 1974, during the party reorganizing days he became a member of Jalpaiguri-Coochbehar regional Committee and worked as an important organizer in Kamakshaguri areas in North Bengal. Later he served the party as the secretary of Jalpaiguri Town Committee and Jalpaiguri Sadar Block Committee respectively. He was elected the District Secretary of Jalpaiguri in 2004 and became a member of West Bengal state Committee in 2007 and continued in both the party posts till death.
His mortal remains was laid in state at the district party office in Jalpaiguri town, where party state committee members, district committee members of jalpaiguri and Darjeeling and district leaders of CPI(M), RSP, SUCI, Samajbadi Janaparishad and CITU paid homage to his revolutionary past. His last journey was attended by a considerable number of party workers and citizens from other walks of life. Long live the revolutionary legacy of our beloved leader Com. Subrata Chakraborty.