India has submitted a modified claim to the United Nations Commission on the Limits of the Continental Shelf (CLCS) to extend its Extended Continental Shelf in the Central Arabian Sea by nearly 10,000 square kilometers, aiming to secure valuable seabed resources while avoiding a maritime dispute with Pakistan. 

What is the Extended Continental Shelf? 

• Extended Continental Shelf (ECS): The continental shelf under UNCLOS includes the seabed and subsoil of submarine areas extending beyond a coastal State’s territorial sea, either up to the natural edge of the continental margin or up to 200 nautical miles from its baselines, whichever is farther. 
  • The Extended Continental Shelf refers to the seabed area that extends beyond the 200 nautical miles limit of the exclusive economic zone (EEZ) and is an extension of a country's continental shelf 
• Exclusive Economic Zone (EEZ): Coastal nations, including India, are entitled to an EEZ extending 200 nautical miles from their coastline.  
  • This grants them exclusive rights for resource extraction, including fishing and seabed mining. 
  • The UN CLCS facilitates the implementation of the United Nations Convention on the Law of the Sea (UNCLOS).  

What is India’s Current Extended Continental Shelf Claim? 

• Initial Submission (2009): India submitted its ECS claim to the UN CLCS, covering parts of the Bay of Bengal, Indian Ocean, and Arabian Sea, seeking rights over the seabed beyond its EEZ. 
• Objections and Review: In 2021, Pakistan objected to India's claim in the Western Arabian Sea, citing a 100-nautical-mile overlap near the disputed Sir Creek area. 
  • In 2023, the CLCS rejected India's claim in the Arabian Sea but allowed resubmission with modifications. 
• Modified Submission (2025): India revised its claim by splitting the Western Arabian Sea submission into two parts, avoiding the disputed area and adding nearly 10,000 sq km in the Central Arabian Sea. 
  • This strategic move aims to secure seabed areas rich in minerals, polymetallic nodules, and oil reserves critical for India’s economic interests. 
• Current Status: India's amended submission will be reviewed in the 64th CLCS session (August 2025), with recommendations to be made under Article 76 of UNCLOS. 
  • Article 76 of the UNCLOS defines the continental shelf and establishes rules for determining its outer limits.