The body of Gour Debnath (35), a resident of Debnathpara, was found in front of Kulgachhia Primary school in Uluberia by residents this morning.
Debnath used to buy fish from the local market and sell it another market in Howrah town daily.
Police who arrived at the spot to remove the body faced protest from local residents who demanded that sniffer dogs should be pressed into service to bring the culprits to book, the officer said.
The body has been sent for postmortem.