[8] In the 1973 Bangladeshi general election he stood as a nominee of the National Awami Party faction led by Muzaffar Ahmed (NAP (M)).
[8] He joined Bangladesh Awami League party in 1996, but lost the national election that year.
[8] On 24 February 1996, prior to the controversial elections that month, police raided his house along with those of Amir Hossain Amu and Mohammad Abdur Razzaque under the Special Powers Act, but were unable to locate him.
[8] But after a bribery scandal became known, leaders from both the Bangladesh Workers Party and the Awami League called for him to resign.
On 9 April 2012 his assistant personal secretary, general manager of the eastern region, and commandant of security were driving to Sengupta's residence with 7.4 million Taka of bribe money, when the driver Azam Khan turned them in.
So I suggested distributing the fund equally to the existing institutions in order to eliminate the negativity created.
"[15] In April 2013, Sengupta brought a defamation case against the Amar Desh staff, including Mahmudur Rahman and an NGO official for the publishing of this report.