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20th May 2025 (13 Topics)

Mullaperiyar Dam Dispute

Context

The Supreme Court stepped in to facilitate cooperation between Tamil Nadu and Kerala, focusing on urgent repair and safety works around the dam.

What is the Mullaperiyar Dam dispute?

  • The Mullaperiyar Dam, built in 1895 on the Periyar River in Kerala's Idukki district, is owned, operated, and maintained by Tamil Nadu based on a lease agreement signed in 1886 between the then Travancore kingdom and the Madras Presidency (British rule).
  • While the dam is located in Kerala, it serves Tamil Nadu by providing irrigation and drinking water, especially to the southern districts like Theni, Dindigul, and Madurai.
  • Kerala has for long raised safety concerns about the 125-year-old dam, especially because it's in a seismically sensitive area.
  • Tamil Nadu, on the other hand, maintains that the dam is structurally safe and wants to carry out essential repairs and maintenance, but Kerala has sometimes restricted access or raised environmental objections.
  • This has led to a long-standing inter-state dispute, involving multiple cases in the Supreme Court over decades.
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