A depression over Bay of Bengal bypassed Chennai and moved towards Bangladesh on Wednesday, triggering heavy rainfall in parts of Tamil Nadu, coastal Andhra Pradesh and West Bengal.
Four National Disaster Response Force (NDRF) teams arrived in Chennai on Wednesday with 24 boats. The Tamil Nadu capital had suffered damages and witnessed flooding in its worst rainfall in 100 years last November.
An Indian Administrative Service (IAS) officer was appointed to supervise flood-related relief efforts and safety measures in each of Chennai’s 30 zones.
Officials said they deployed motor pumps near subways – such as Ganeshapuram, Perambur High Road and the Villivakkam Redhills Subway – prone to flooding. Medical teams were formed to assist affected residents.
The rains started on Monday in coastal parts of northern Tamil Nadu continues till Wednesday.
IMD, in its bulletin said that the depression over southwest Bay of Bengal moved nearly northwards in past six hours and lay centred at about 90 km east of Chennai and about 70 km from the coast.
“The system is likely to move north-northeastwards and intensify into a deep depression and further into a cyclonic storm in during next 48 hours,” it said.
Sewage lines in Chennai have started overflowing in many areas due to rain caused by the cyclonic winds.
Rains and floods for two consecutive weeks last year killed nearly 350 people in Tamil Nadu and caused widespread destruction.