Poddar has filed a complaint at the Sreerampur Police Station.
The letter also has a morphed picture of Banerjee, in which she is labelled as a witch.
The letter has been signed in the name of Rajveer Killa and a mobile number has also been mentioned in it.
A person by the same name, who is a resident of Bidhannagar, approached the state police and complained that his name has been wrongly used in the letter.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)