Science and technology

ORV Sagar Manthan

GS3 Science and Technology - Ocean researchPrelims and Mains

In the news since 9 September 2026

Why in news
On 9 September 2026, ORV Sagar Manthan, India's new ocean research vessel, was launched at Rishi Bankim Shipyard, Kolkata. GRSE is building it for NCPOR under the Ministry of Earth Sciences.
What it is
ORV Sagar Manthan is an all-weather, multidisciplinary ocean research vessel built in India by GRSE for NCPOR. It is meant for deep ocean survey and exploration, including in the Southern Ocean. It will gradually replace the ageing ORV Sagar Kanya.
Builder and user
Garden Reach Shipbuilders & Engineers Limited (GRSE), a defence PSU, is building it for NCPOR under MoES.
Research aim
It will explore Indian Ocean mid-oceanic ridges for multi-metal hydrothermal sulphide mineralisation and set environmental baselines.
Equipment
It has dynamic positioning, multibeam bathymetry, multichannel seismic systems, and facilities to deploy ROVs and AUVs.
Certification
It is built under dual-class certification by the Indian Register of Shipping and the American Bureau of Shipping.

Don’t confuse with ORV Sagar Manthan vs ORV Sagar Kanya: Sagar Manthan is the new Indian-built vessel being launched in 2026. Sagar Kanya is the older vessel, procured from Germany in 1983, which it will gradually replace.

Don’t confuse with NCPOR vs MoES: NCPOR is the institution that will operate the vessel. MoES is the parent ministry that funds it under the Deep Ocean Mission.

Science and technology: 57 Prelims questions since 2013; most test the concept behind the news, not the news itself. In Mains, 12 news-triggered questions.

No practice question for this one; the card may still help an answer. Why: Research vessel for NCPOR built by GRSE. Useful context, but a ship launch gives few testable facts and sets no debate.

Worth revising until Prelims 2028: most news questions come within two years of the event.

Each time it was in the news

  1. 9 September 2026

    On 9 September 2026, ORV Sagar Manthan, India's new ocean research vessel, was launched at Rishi Bankim Shipyard, Kolkata. GRSE is building it for NCPOR under the Ministry of Earth Sciences.