His name hit the headlines while he attempted to endorse the reason for the mysterious death of Rizwanur Rahman, a graphic design instructor at a multimedia teaching private institute.
After a fortnight of the separation, while Rahman filed a case with an NGO, and was planning to move to court, his severed body was found next to the railway tracks.
[3][4] Mukherjee attended a press conference on 23 September to endorse the supposed duty of police officials to interfere in people's personal matters.
[9] As of early October 2007, several eminent social workers and intellectuals demanded Mukherjee's removal from the post of The Commissioner of Police.
[10] The government delayed to take any action presumably due to his close personal relations with the former Chief Minister Buddhadeb Bhattacharjee, who previously assisted him in attaining the post of the President of the Cricket Association of Bengal.
After a lot of speculations, Mukherjee was merely transferred from his post of the Commissioner of Police, on 17 October 2007, primarily due to media and public pressure.