Dasmunshi entered politics as a member of the Chhatra Parishad, the student's wing of the state Congress unit while studying in the Calcutta University as a protégé of veteran Congress leader Atulya Ghosh when the state was hit with the first-wave of Naxalite-Maoist insurgency, which saw large number of students from well-reputed colleges & universities of Calcutta abandon their studies to take up arms against the state in lines of the people's war strategy of Naxalite ideologue Charu Majumdar.He, alongside Subrata Mukherjee & Somen Mitra was the prominent militant face of the Chhatra Parishad who clashed heads-on with the student cadres of both CPI(M) & CPI(ML) alike in the politically turbulent atmosphere of the state caused by a fractured mandate in the state elections & the Naxalite insurgents.[3][4] In 2007, Dasmunsi was also responsible requiring broadcaster Nimbus Communications to share broadcast rights for the Indian cricket team with the state television network, Doordarshan — this despite Nimbus paying hundreds of millions of dollars for the rights to the Board of Control for Cricket in India.While attending Durga Puja celebrations at his ancestral residence at Kaliaganj, he suffered a massive stroke and paralysis on 12 October 2008, leaving him in minimum conscious state.In November 2009, Dasmunsi was temporarily moved to Düsseldorf, where he underwent stem cell therapy in an attempt to reverse some of the loss of brain functions caused by the stroke.[11] Since Dasmunsi's hospitalization, his wife Deepa, to some extent had taken over his political mantle; she was elected from Raiganj (Lok Sabha constituency) in 2009.
Dasmunsi addressing at the inauguration of the Indian Panorama during the 37th International Film Festival (IFFI) in Panaji, Goa, November 24, 2006.
Dasmunsi (as Union Minister for Information & Broadcasting and Parliamentary Affairs) addressing a press conference, in New Delhi, March 22, 2006.
Dasmunsi speaking, after receiving the FIFA plaque from
FIFA
, April 2007.