Two women died amid heavy rain in Tamil Nadu's Cuddalore after a building collapsed.
The state is bracing for more rain, with a well-marked low pressure area over the Bay of Bengal likely to cross its northern coast (and parts of southern Andhra Pradesh) over the next 24 hours.
On Wednesday morning the weather department issued a red alert for Chengalpattu, Villupuram, Mayiladuthurai, and Cuddalore districts. Alerts for extremely heavy rainfall were also issued for Nellore, Prakasam, Tirupati, Annamayya, Chittoor, and Kadapa in Andhra.