A cyclonic circulation over the north Bay of Bengal triggered heavy rains in Gangetic West Bengal on Wednesday, the Met department said.
South Bengal districts, including Kolkata, have been receiving intermittent showers with heavy downpours at one or two places since Tuesday owing to the weather system.
The cyclonic circulation over the north Bay of Bengal will bring heavy rain in Gangetic West Bengal in the southern part of the state till Thursday morning, the Met department said in its forecast.
