Context: INS Nistar, India’s first indigenously designed and built Diving Support Vessel (DSV), was delivered by Hindustan Shipyard Limited to the Indian Navy.
Relevance of the Topic: Prelims: Key facts about INS Nistar.

INS Nistar
- INS Nistar is a highly specialised Diving Support Vessel that can undertake Deep Sea Diving and Rescue Operations- a capability with select Navies across the globe.
- It measures 118 m with a tonnage of nearly 10,000 tonnes.
- It is equipped with state-of-the-art Diving Equipment and can undertake Deep Sea Saturation Diving up to a depth of 300 metres.
- The ship will also serve as the ‘Mother Ship’ for the Deep Submergence Rescue Vessel (DSRV), to rescue and evacuate personnel, in case of an emergency in a submarine underwater.
The induction of INS Nistar with nearly 75% indigenous content is another milestone in the Indian Navy’s quest for indigenous construction.
