India, Oct. 22 -- Several districts across Tamil Nadu are on high alert as the northeast monsoon intensifies following its early onset, raising fears of a potential cyclone formation over the Bay of Bengal.

Authorities have activated rescue and relief measures across vulnerable coastal regions, officials confirmed on Tuesday.

The India Meteorological Department (IMD) has forecast extremely heavy rainfall in Chengalpattu, Villupuram, Cuddalore, and Mayiladuthurai districts tomorrow.

Schools and colleges in four districts will remain closed as a precaution. Chennai remains under an orange alert, denoting very heavy rainfall between 11 and 20 cm.

Neighbouring Puducherry has also swung into action, preparing for possible rescue and relief...