Wind speed reaching 45 to 55 km/ph and gusting to 65 km/ph would prevail along and off north Odisha and West Bengal coasts in the next 24 hours.
The incessant rain and squally wind affected normal life in the metropolis on the first working day of the week.
West Bengal, Jharkhand, Bihar and Odisha are expected to receive heavy rainfall duirng the next 24 hours.
"The deep depression is likely to weaken into a depression and then into a well-marked low pressure and continue to move in a west-northwestward direction towards the Jharkhand border", Das said.
As per police sources, a portion of a wall of an old, dilapidated building in ward number 74 of Kolkata Municipal Corporation in Alipore police station area collapsed due to heavy rain.
Municipal workers fix a manhole during heavy rainfall in the city on Monday.More news: Very humid Monday with leftover rain from Nate, mainly this morning
Asansol, Raniganj and Durgapur in the western part of the state have been experiencing heavy rain and squally winds since the morning, which have led trees being uprooted and waterlogging at some places.
Plane departures at Kolkata airport were suspended for sometime due to strong winds.
While the Delhi-Kolkata and Delhi-Mumbai flights were diverted to Delhi and Ranchi respectively, a flight from Port Blair was diverted to Agartala. The condition of the sea off the coast of Odisha will be rough and fishermen have been advised against venturing into the waters.
Airport authority said, only arrivals of flights were possible.
Three pairs of EMU local trains of the Sealdah South section and four local trains of the Howrah-Bardhaman chord line in the Howrah division of the Eastern Railway (ER) had to be cancelled because of tree branches that had fallen on overhead wires, ER spokesman R.N. Mahapatra said.