A man attached with a real estate firm was found dead on a footpath along Southern Avenue on Monday. His family has alleged foul play and accused four of his acquaintances of murdering him.

Police have started a murder case against Biswajit Chakraborty, Surajit Chakraborty, Bapi Halder, and Asish Gayen, all residents of Panchanantala Road, named by Prabir Das’s family in their FIR with Rabindra Sarobar police station.

Das, 36, a resident of Rahim Ostagar Road, used to oversee the construction work in some of the real estate firm’s projects, the family has told cops. He was found on a footpath off Keyatala Road on Monday evening and declared dead at SSKM Hospital.

A post-mortem was carried out on Tuesday, after which his mother Kajal Das lodged the FIR against the four.

The Das family stays not far from the place where the body had been found.

“She has alleged that the four thrashed her son causing grievous injuries that led to his death. She has said they had personal enmity,” an officer of Rabindra Sarobar police station said.

Preliminary investigations suggested this was not the first time Das had been found lying unconscious on a footpath along Southern Avenue.

“We are waiting for the post-mortem report to ascertain if there are injury marks that suggest foul play. We will question the four men named in the FIR,” the officer said.

No one has been arrested so far.