A market in Mission Bazaar, Kestopur, around 1.5km away from VIP Road was sealed on Saturday.
Two traders of the market have tested positive for Covid-19 on Saturday, an official of the Bidhannagar Municipal Corporation said.
One of them owns and runs a fish stall near the Baisakhi Housing Complex in Salt Lake.
The market will remain shut till Friday next week, the official added.
On all the days, health teams will visit the market and spray disinfectants on all stalls.
The market had been attracting huge crowds every day with people rarely following distancing rules.
“We had no option but to shut down this market. It is quite popular among people out to buy fish and attracts customers from Kestopur, Baguiati, Kaikhali and even Lake Town,” the civic official said.