Why in News? 

The Indian Navy inducted INS Nistar, its first indigenously designed and built Diving Support Vessel, from Hindustan Shipyard Ltd., Visakhapatnam. 

What is INS Nistar? 

• INS Nistar is India’s first indigenously designed and built Diving Support Vessel (DSV). 
• Built by Hindustan Shipyard Ltd. and classified under Indian Register of Shipping (IRS) norms. 
• Name ‘Nistar’ means rescue/liberation/salvation in Sanskrit. 

INS Nistar 

Key Features 

• Length: 118 meters. 
• Weight: ~10,000 tons. 
• Diving capability 
  • Saturation dives up to 300 meters. 
  • Side diving stage for 75 meters. 
• Equipped with advanced diving equipment and Remotely Operated Vehicles (ROVs) for operations up to 1000 meters. 

Strategic Role 

• Acts as the Mother Ship for Deep Submergence Rescue Vessel (DSRV) to rescue submariners during emergencies. 
• Enhances India’s capability in deep-sea rescue and underwater operations.