Skip to content
GK24

Ocean Research Vessel ORV Sagar Manthan Launched at Kolkata

India's first advanced ocean research vessel ORV Sagar Manthan was launched on 9 September 2026 at Kolkata, built by GRSE for NCPOR at about Rs 840 crore.

By Published · 2 min read
Ocean Research Vessel ORV Sagar Manthan Launched at Kolkata

Why in News

On 9 September 2026 the ocean research vessel ORV Sagar Manthan, built by GRSE for NCPOR under the Ministry of Earth Sciences, was launched at Kolkata by Union Minister Dr Jitendra Singh at a cost of about Rs 840 crore.

India has put its first advanced ocean research vessel into the water. ORV Sagar Manthan, earlier known only as Yard 3041, was launched on 9 September 2026 at the Rishi Bankim Shipyard in Kolkata. Dr Jitendra Singh, Minister of Earth Sciences, launched it virtually, and his spouse Mrs Manju Singh named the ship as tradition requires.

Who built it and for whom

The vessel was designed, engineered and built by the defence public sector undertaking Garden Reach Shipbuilders and Engineers Limited (GRSE). The owner is the National Centre for Polar and Ocean Research (NCPOR), which works under the Ministry of Earth Sciences. Dr T. Srinivasa Kumar, Secretary of the ministry, was present at Kolkata.

The ship in figures

ItemDetail
CostAbout Rs 840 crore
ProgrammeVertical-4, Deep Ocean Survey and Exploration, of the Deep Ocean Mission
Service life30 years
CertificationDual class, Indian Register of Shipping and American Bureau of Shipping
CommissioningScheduled for 2028

What it replaces

The new ship will gradually take over from the 43-year-old ORV Sagar Kanya, which India bought from Germany in 1983. The minister called the day a red letter day and noted that the launch came within two years of the contract and barely five months after the keel was laid.

What it will do

ORV Sagar Manthan is an all-weather platform built to work even in the Southern Ocean. It carries dynamic positioning, multibeam bathymetry, multichannel seismic systems, sub-bottom profiling and weather radar, and can deploy remotely operated vehicles and autonomous underwater vehicles. Its research will run along the mid-oceanic ridges of the Indian Ocean, looking for multi-metal hydrothermal sulphide mineralisation, setting environmental baselines and collecting upper-air data.

Milestones so far

The contract was signed in July 2024, the first steel was cut on 29 November 2024 and the keel was laid on 8 April 2026. Superstructure erection, system integration and sea trials come next, before delivery to NCPOR.

Important Facts

VesselORV Sagar Manthan (Yard 3041)
Launched on9 September 2026, Rishi Bankim Shipyard, Kolkata
Launched byDr Jitendra Singh, Minister of Earth Sciences (virtually)
BuilderGarden Reach Shipbuilders and Engineers Limited (GRSE)
OwnerNational Centre for Polar and Ocean Research, Ministry of Earth Sciences
CostAbout Rs 840 crore
ProgrammeVertical-4 of the Deep Ocean Mission
Service life30 years
ReplacesORV Sagar Kanya, 43 years old, bought from Germany in 1983
CommissioningScheduled for 2028

Exam Point of View

Remember the name of the vessel and its yard number 3041, the builder GRSE, the owner NCPOR under the Ministry of Earth Sciences, the cost of about Rs 840 crore, the Deep Ocean Mission vertical it belongs to, the service life of 30 years, the 2028 commissioning and the older ship it replaces, ORV Sagar Kanya of 1983.

Practice Questions

Q1.Science & TechnologyMedium

Which shipyard designed and built the ocean research vessel ORV Sagar Manthan, launched on 9 September 2026?

  1. A.Cochin Shipyard Limited
  2. B.Mazagon Dock Shipbuilders
  3. C.Garden Reach Shipbuilders and Engineers Limited
  4. D.Hindustan Shipyard Limited
Show answer

Correct answer: C. Garden Reach Shipbuilders and Engineers Limited

Explanation

The correct answer is Garden Reach Shipbuilders and Engineers Limited, a defence public sector undertaking, which designed, engineered and constructed the vessel at its Rishi Bankim Shipyard in Kolkata for the National Centre for Polar and Ocean Research. The minister praised the yard for completing the launch within two years of signing the contract. Option A, Cochin Shipyard, is the yard associated with the indigenous aircraft carrier, which makes it the most attractive wrong choice for anyone who remembers only that an Indian yard did something notable. Option B, Mazagon Dock, builds submarines and destroyers for the Navy at Mumbai, again a real and important yard but not this one. Option D, Hindustan Shipyard at Visakhapatnam, also builds and repairs ships for the government. Anchor the answer with the city: this launch took place at Kolkata, and the Kolkata yard is GRSE.

Q2.Science & TechnologyMedium

ORV Sagar Manthan will gradually replace which older research vessel?

  1. A.ORV Sagar Nidhi
  2. B.ORV Sagar Kanya
  3. C.INS Sandhayak
  4. D.MV Sagar Sampada
Show answer

Correct answer: B. ORV Sagar Kanya

Explanation

The correct answer is ORV Sagar Kanya. That vessel is 43 years old and was procured from Germany in 1983, and the new ship will take over its work step by step. The point matters because the replacement marks a shift from buying research platforms abroad to building them in India, which the Secretary of the Ministry of Earth Sciences highlighted at the ceremony. Option A, Sagar Nidhi, is a research vessel of the National Institute of Ocean Technology and is not the ship named for replacement here. Option C, INS Sandhayak, is a naval survey vessel, so it belongs to the Navy rather than to the Ministry of Earth Sciences. Option D, Sagar Sampada, is a fishery and oceanographic research vessel and shares the Sagar prefix, which is exactly why it is a tempting distractor. Remember the German origin and the year 1983 with the name Sagar Kanya.

Q3.Science & TechnologyHard

ORV Sagar Manthan was built under which programme, and at what approximate cost?

  1. A.Deep Ocean Mission, about Rs 840 crore
  2. B.Mission Samudrayaan, about Rs 640 crore
  3. C.Blue Revolution, about Rs 940 crore
  4. D.O-SMART Scheme, about Rs 740 crore
Show answer

Correct answer: A. Deep Ocean Mission, about Rs 840 crore

Explanation

The correct answer is the Deep Ocean Mission, about Rs 840 crore. More precisely, the ship was built under Vertical-4 of that mission, which deals with deep ocean survey and exploration, and it is an all-weather multidisciplinary platform engineered even for the Southern Ocean, with a projected service life of 30 years. Option B names Samudrayaan, which is the crewed submersible effort and is itself a part of the wider deep ocean effort rather than the programme named in this release, and its cost figure is invented. Option C, Blue Revolution, is a fisheries development scheme and has nothing to do with research vessels. Option D, O-SMART, is a real ocean services and technology scheme of the same ministry, which makes it the sharpest distractor, but the vessel is placed under the Deep Ocean Mission. Note also the dual class certification by the Indian Register of Shipping and the American Bureau of Shipping.

Frequently Asked Questions

Which shipyard built ORV Sagar Manthan?

Garden Reach Shipbuilders and Engineers Limited, a defence public sector undertaking, at its Rishi Bankim Shipyard in Kolkata. The vessel was built for the National Centre for Polar and Ocean Research.

Which older vessel will ORV Sagar Manthan replace?

ORV Sagar Kanya, which is 43 years old and was procured from Germany in 1983. The Ministry of Earth Sciences also plans to acquire more oceanographic vessels and a polar research vessel.

Under which mission was ORV Sagar Manthan built?

Under Vertical-4, Deep Ocean Survey and Exploration, of the Deep Ocean Mission, at a cost of about Rs 840 crore. Its commissioning is scheduled for 2028.

Sources

Useful for:SSCSSC CGLIBPS