Cyclone Ditwah LIVE updates: After delta, south coastal districts, Ditwah to batter north T.N.

14 NDRF teams deployed in Villupuram, Chengalpattu, Tiruvallur, Nagapattinam, Tiruvarur, Thanjavur, Pudukottai, and Mayiladuthurai; additional teams allocated for Puducherry and Chennai