The meeting between Andhra Pradesh Chief Minister N. Chandrababu Naidu and Tamil Nadu Chief Minister C. Joseph Vijay highlights a pressing challenge for southern India: securing reliable water supplies as climate variability intensifies competition among states. Their discussions offer an opportunity to turn interstate cooperation into practical solutions, particularly for Chennai’s drinking water needs.

Naidu’s willingness to consider releasing an additional 10 thousand million cubic feet (TMC) of water to Chennai through the Telugu Ganga project is a significant step. Andhra Pradesh has already supplied 4.08 TMC this year, demonstrating the value of cooperation between neighbouring states. For Chennai, where urban growth places increasing pressure on reservoirs and other sources, additional supplies could provide meaningful relief. However, water sharing must account for the needs of both states. Reduced Krishna inflows associated with El Niño conditions have heightened water stress in Andhra Pradesh, which must also meet the demands of its farmers, industries and growing cities.

The immediate priority is to establish a clear allocation, a reliable release schedule and transparent arrangements for monitoring supplies. Naidu’s proposal to link the Godavari, Krishna,........

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