Sony Pictures Television International (SPTI) issued a statement on Thursday saying that Dasgupta had resigned for 'personal reasons'.
However, local press is speculating that his departure is related to a dispute between MSM and the Board of Cricket Control India over sponsorship of the Indian Premier League (IPL) cricket.
Reliance ADA Group's Big TV recently pulled out of thetop-rating cricket league after discovering that it was not the exclusive on-ground sponsor of the event.
Dasgupta is also co-chairman of the FICCI entertainment committee and spoke at the10th FICCI Frames confab on Tuesday (Feb 17).
Hehas headedSET since it launched in India as a single channel in 1995. It now operates several channels including MAX, SAB and PIX.
MSM board chairman Man Jit Singh will take over from Dasgupta until a replacement is found.