×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 18 March, 2021

  • 3 Min Read

Rule Curve of a Dam

Rule Curve of a Dam

The Supreme Court ordered the Tamil Nadu govt. to give information on the ‘rule curve’ for the Mullaperiyar dam.

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.
  • Rules curves are used to guarantee the safety of the reservoir as well as water security.

About Mullaperiyar Dam:

  • The Mullaperiyar dam is located on the confluence of the Mullayar and Periyar rivers in Kerala’s Idukki district.
  • The dam is located on the Cardamom Hills of the Western Ghats
  • It is operated and maintained by the neighbouring state of Tamil Nadu even though, the dam is located in Kerala.
  • The dam is operated by Tamil Nadu following an 1886 lease agreement for 999 years.
    • It was signed between the Maharaja of Travancore and the Secretary of State for India during British Rule.
  • In the 1970s, the lease agreement was renewed by Tamil Nadu and Kerala.
    • It gave the former, rights to the water from the dam, in return, Kerala receives rent from Tamil Nadu.

Source: TH


India–Azerbaijan

A year after tensions arising from Operation Sindoor, India and Azerbaijan have taken steps to restore and normalise bilateral relations. The 6th round of Foreign Office Consultations, held in Baku, marked the first such engagement since 2022, signaling renewed diplomatic momentum. Recent Diplomatic Engagement During the consultations, bo

India–Australia Economic Cooperation and Trade Agreem

The India–Australia Economic Cooperation and Trade Agreement has completed four years since its signing. Both countries now aim to build on this progress through strengthened collaboration and ambitious targets, including reaching AUD 100 billion in bilateral trade by 2030. What is the India–Australia Economic Cooperation and Tra

ADR Report on Political Funding

A recent report by the Association for Democratic Reforms (ADR) analyses donations of ?20,000 or more declared to the Election Commission of India (ECI) by national political parties for FY 2024–25, highlighting transparency and accountability in political financing. Key Findings Massive Funding Surge Total donations to nationa

Maritime Chokepoints

Maritime chokepoints are narrow channels along global shipping routes where maritime traffic is concentrated. These points are geopolitically and economically critical, as they handle a large proportion of global trade, especially energy shipments. Current Relevance Over two-thirds of seaborne energy trade passes through a handful o

US-Israel-Iran War

Following the launch of Operation Epic Fury (U.S.) and Operation Roaring Lion (Israel), the geopolitical landscape has shifted fundamentally with the confirmed death of Iran’s Supreme Leader, Ayatollah Ali Khamenei.Iran retaliated through Operation True Promise 4, launching missile attacks against Israel and nearby Gulf states. The escala

DNA

05 Apr,2026

Toppers

Search By Date

Newsletter Subscription
SMS Alerts

Important Links

UPSC GS Mains Crash Course - RAW