He is one of the close associates of Mamata Banerjee since mid 80s and was a prominent face in her fights against CPI(M).

On 27 May 2016 he took charge as the Hon'ble Minister of Power & Non Conventional Energy, Government of West Bengal.

[1] A boxer in his younger days, he is a veteran trade union leader, holding degrees in science and law.

[2] He resigned from his seat in the Bhabanipur (Vidhan Sabha constituency) for CM Mamata Banerjee to contest West Bengal Legislative Assembly by-election.

[9] He then contested the by election from Khardah (Vidhan Sabha constituency) and won with a margin of 93,832 votes.