The heavy rainfall has been predicted due to a depression formed over Gangetic West Bengal and adjoining north Bay of Bengal. The Weather Department said the inclement weather was triggered by a deep depression.
The heavy rain disrupted normal life in several parts of south Bengal, including Kolkata, where flight and train services and road transportation were affected. The government has opened a 24×7 control room to meet the exigency, and is monitoring the situation.
However, the IMD forecast said that rain and thunder shower likely to occur at many places in districts of Odisha during next 24 hours.
According to the centre, the observations and satellite imagery indicated that the depression had intensified into deep depression which lay centred about 175 km north-east of Balasore and 300 km north-east of Paradip.
Squally wind reaching a speed of 45 to 55 km per hour, gusting to 65 km per hour would prevail along and off north Odisha and West Bengal coasts, it said.More news: Player: 'sad to see Old Course beaten by modern equipment'
Sea condition would be rough in north Odisha and West Bengal until tomorrow. The rains, which began on Sunday night, continued on Monday, hampering functioning of offices and business establishments on the first working day of the week.
Waterlogging and uprooted trees blocked some thoroughfares of the city, affecting the movement of vehicles. A flight from Port Blair was diverted to Agartala.
Only one flight from Hyderabad could land at the Kolkata airport this morning, he added.
Landing of 47 in-bound flights and departure of about 35 flights was rescheduled and many flights were delayed, an official said.
"Due to heavy rain and strong wind in Panagarh-Asansol-Sitarampur section of Eastern Railway?s Asansol Division, train services in the section were affected today", Eastern Railway spokesman R N Mahapatra said.