Mullaperiyar dam issue

Why is it in news?
  • The Supreme Court said the Tamil Nadu Chief Secretary will be “personally responsible” on failure to give information on the ‘rule curve’ for the Mullaperiyar dam to the Supreme Court-appointed Supervisory Committee.
  • The court was hearing a petition, expressing their apprehensions about the lack of proper supervision of water levels in the dam located along the Periyar tiger reserve.
What is Rule Curve?
  • The ‘rule curve’ in a dam decides the fluctuating storage levels in a reservoir.
  • The gate opening schedule of a dam is based on the ‘rule curve’.
  • It is part of the “core safety” mechanism in a dam.
T.N. blames Kerala:
  • During the high-voltage hearing, the Tamil Nadu government blamed Kerala for delaying the finalisation of the ‘rule curve’ for the 123-year-old dam.
About the Dam:
  • The Mullaperiyar Dam is a masonry gravity dam on the Periyar River in the state of Kerala.
  • Periyar river originates from Ananamalai Hills and Joins sea near Ernakulam
  • The dam is located , on the Cardamom Hills of the Western Ghats in Thekkady, Idukki District of Kerala.
Source: The Hindu.
Posted by Jawwad Kazi on 17th Mar 2021
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