By Capt. (Dr.) RC Muni (Retd) · Defence faculty, The Cavalier
A naval officer reads a ship from a mile away: the length of the hull, where the guns sit, whether there is a flight deck or a stern door. Defence GK papers test the same skill: which ship is a destroyer and which a frigate, which class was built where, which commissioning made the news. This page gives nine ship types, the project numbers (P-15B, P-17A, P-28 and the rest), the Navy's naming habits, and the shift from a buyer's navy to a builder's navy, with PIB figures and dates.
It is the surface-fleet hub of our Defence GK library under Indian Navy; submarines have their own page. Only publicly released information is used.
Nine Ship Types, Told Apart
Sort the fleet by job first and size second. Where PIB gives a figure, it is used below.

| Type | What it is for | Rough size | Indian examples |
|---|---|---|---|
| Aircraft carrier | A floating airbase: fighters and helicopters give the fleet air cover far from land | INS Vikrant: 262.5 m long, about 45,000 tonnes (PIB) | INS Vikrant, built at Cochin Shipyard; INS Vikramaditya, bought from Russia |
| Destroyer | The largest escort: air defence, anti-ship strike and anti-submarine work | Visakhapatnam class: 163 m, 7,400 tonnes (PIB) | Delhi, Kolkata and Visakhapatnam classes |
| Frigate | The all-round escort, a little smaller than a destroyer; a "stealth" hull is shaped to show a smaller radar echo | Nilgiri class: about 149 m, 6,670 tonnes (PIB) | Shivalik, Talwar and Nilgiri classes |
| Corvette | A small warship for coastal waters: anti-submarine and anti-surface work close to home | The Kamorta class is in the 3,000-tonne range; the Arnala-class craft about 900 tonnes (PIB) | Kamorta class; Arnala and Mahe classes of anti-submarine shallow water craft |
| Offshore patrol vessel (OPV) | Long-endurance patrol of the Exclusive Economic Zone: surveillance, rescue, anti-piracy | Lightly armed, built to stay at sea | INS Sumedha, the Presidential Yacht at the 2026 Fleet Review; 11 new-generation OPVs ordered |
| Landing platform dock (LPD) and landing ship tank (LST) | Carry troops, vehicles and landing craft to a beach; the LPD has a flooded stern dock for the craft | INS Jalashwa is a press-reported 17,000-tonne ship; LSTs are smaller | LPD INS Jalashwa; LSTs INS Kesari and INS Airavat |
| Fleet support ship and tanker | Refuel and resupply warships at sea so the fleet can stay away for months | Larger than a destroyer | Fleet tanker INS Shakti; five Fleet Support Ships building at HSL |
| Survey vessel | Maps the seabed and coast for charts; can serve as a hospital ship in an emergency | Sandhayak class: about 110 m, 3,400 tonnes (PIB) | INS Sandhayak, Nirdeshak, Ikshak, Sanshodhak |
| Mine countermeasure vessel (MCMV) | Finds and clears sea mines to keep harbours and shipping lanes open | Small, a few hundred tonnes | Under procurement; see the note below |
PIB says the minesweeper INS Mangrol (M85) served until April 2004 and an inshore minesweeper named Malvan until 2003; both names now sit on new anti-submarine craft, which PIB credits with mine-warfare capability. On 3 July 2025 the Defence Acquisition Council gave Acceptance of Necessity for Mine Counter Measure Vessels. So dedicated MCMVs are a project under way, not a delivered class. PIB does not describe a "gap", so neither do we.
Displacement differs between standard and full load, and Kamorta-class figures run from about 2,500 to 3,500 tonnes. INS Vikrant and INS Vikramaditya are both about 45,000 tonnes, so answer "largest warship ever built in India" for Vikrant, as PIB does.
Three of these types have their own pages: aircraft carriers, guided-missile destroyers and stealth frigates and corvettes. The landing ships, tankers, survey and diving vessels are on amphibious and support ships. The Army's counterpart is Indian Army weapon systems.
How Navy Ships Get Their Names
The Navy publishes no naming rulebook, but the habits are steady enough to use.
| Type | Usual source of names | Examples |
|---|---|---|
| Destroyers | Cities and ports | Delhi, Mysore, Mumbai (P-15); Kolkata, Kochi, Chennai (P-15A); Visakhapatnam, Mormugao, Imphal, Surat (P-15B). PIB calls Mormugao the historic port city of Goa. |
| Frigates | Hill ranges and mountains; older classes also took river names | Shivalik, Satpura, Sahyadri (P-17: all begin with S). The Nilgiri class (P-17A) ends every name in "giri" (hill). The Talwar class took weapon names: Talwar, Trishul, Tabar, Teg, Tarkash, Trikand, Tushil, Tamal. |
| Corvettes | Islands, or weapons in older classes | Kamorta, Kadmatt, Kiltan, Kavaratti (all K); the older Khukri class took knife and sword names. |
| Shallow water craft | Coastal towns and islands, one initial letter per class | Arnala class, all A: Arnala, Androth, Anjadip, Amini, Abhay, Agray, Akshay, Ajay. Mahe class, all M: Mahe, Malvan, Mangrol and others. |
The rebirth tradition. A new ship takes the name of a retired one; PIB calls it a "reincarnation of the erstwhile ...". Dated examples:
- INS Vikrant renews the first INS Vikrant (R11), decommissioned in 1997 (PIB).
- INS Dunagiri (2026) renews the Leander-class frigate Dunagiri, in service from 5 May 1977 until October 2010.
- INS Mangrol (2026) renews the minesweeper Mangrol (M85), in service until April 2004.
- INS Amini (delivered 5 November 2026) renews a Petya III-class corvette decommissioned in 2002.
- The Arnala class replaces the ageing Abhay-class corvettes, and the names Abhay, Akshay and Ajay come from them.
The Nilgiri class breaks the "one initial letter per class" habit of the Shivalik, Kamorta, Arnala and Mahe classes. Use the pattern to eliminate options, never to settle a question.
Project Numbers: Class, Shipyard and Status
A project number is the Navy's file number for a class: P-15B is the second follow-on to the P-15 destroyer. Most Indian-built combatants are designed by the Navy's Warship Design Bureau. The yards are MDL (Mazagon Dock, Mumbai), GRSE (Garden Reach, Kolkata), CSL (Cochin Shipyard, Kochi), GSL (Goa Shipyard), HSL (Hindustan Shipyard, Visakhapatnam) and the private L&T yard at Kattupalli, Chennai.
The big combatants, status as of 9 November 2026:
| Project | Class and type | Yard | Ships and status |
|---|---|---|---|
| IAC-1 | INS Vikrant, aircraft carrier | CSL | One ship. Keel laid Feb 2009, launched Aug 2013, commissioned 2 Sep 2022; 76% indigenous content (PIB) |
| P-15 | Delhi class, destroyers | MDL | Three ships (Delhi, Mysore, Mumbai); INS Mysore was deployed to Malaysia in Sep 2026 |
| P-15A | Kolkata class, destroyers | MDL | Three ships: Kolkata (Aug 2014), Kochi (Sep 2015), Chennai (Nov 2016) |
| P-15B | Visakhapatnam class, destroyers | MDL | Four of four commissioned: Visakhapatnam (Nov 2021), Mormugao (Dec 2022), Imphal (Dec 2023), Surat (15 Jan 2025, the last) |
| P-17 | Shivalik class, stealth frigates | MDL | Shivalik (Apr 2010), Satpura (Aug 2011), Sahyadri (Jul 2012): the first indigenously designed stealth frigates (PIB) |
| P-17A | Nilgiri class, stealth frigates | MDL (4), GRSE (3) | Seven ordered, six commissioned: Nilgiri (Jan 2025), Himgiri and Udaygiri (Aug 2025), Taragiri (3 Apr 2026), Dunagiri (21 Jun 2026), Mahendragiri (11 Jul 2026); Vindhyagiri (GRSE) still building in Jul 2026 |
| P-28 | Kamorta class, anti-submarine corvettes | GRSE | Four ships; INS Kavaratti was at Singapore with the Eastern Fleet in Jul 2026 |
| P-1135.6 | Talwar and Tushil class, stealth frigates | Russian yards | Eight ships. INS Tushil was commissioned on 9 Dec 2024 and INS Tamal on 1 Jul 2025 at Kaliningrad |
Smaller classes and what is coming:
| Class | Yard | Count and status |
|---|---|---|
| Arnala-class ASW shallow water craft | GRSE with L&T Kattupalli | Eight planned; four commissioned: Arnala (18 Jun 2025), Androth (6 Oct 2025), Anjadip (27 Feb 2026), Agray (21 Jun 2026) |
| Mahe-class ASW shallow water craft | CSL | Eight planned; Mahe (24 Nov 2025), Malvan (22 Jul 2026), Mangrol (12 Oct 2026) commissioned: seven of the 16 craft in all, on our count |
| Sandhayak-class survey vessels (large) | GRSE | Four of four: Sandhayak (Feb 2024), Nirdeshak (Dec 2024), Ikshak (6 Nov 2025), Sanshodhak (21 Jun 2026) |
| Multi-purpose vessel | L&T | INS Samarthak, first of class, commissioned 16 Oct 2026 |
| Next-generation offshore patrol vessels | GSL and GRSE | Eleven ordered; the first, Shachi, was launched on 31 Mar 2026 |
| Next-generation corvettes | GRSE (5), GSL (3) | Eight ordered under contracts of 2 Nov 2026 worth ₹53,866.50 crore |
| Fleet Support Ships | HSL | Five ordered; FSS-1 "Surya" launched and FSS-5 keel laid on 6 Oct 2026 |
PIB has quoted several totals for ships on order or under construction: "over 60 warships" (Feb 2025), "51 large ships" worth about ₹90,000 crore (3 Dec 2025), "45 major platforms" (the Prime Minister, 21 Jun 2026) and "64 of 66" (13 Jul 2026). They count different things at different dates, so quote the latest dated figure. PIB called INS Udaygiri and INS Himgiri the 100th and 101st warships designed in-house by the Warship Design Bureau (Aug 2025), while the Year End Review called INS Nilgiri the 100th indigenously designed naval platform. UPSC follows official figures.
From Buyer's Navy to Builder's Navy
PIB's backgrounder of 3 December 2025 describes a shift from an import-dependent "Buyer's Navy" to a mostly indigenous "Builder's Navy", in three steps:
- Imported. The Talwar class (P-1135.6) was designed and built in Russia, and INS Jalashwa came from the United States. INS Tamal (1 July 2025, Kaliningrad) is the latest Russian-built frigate; press reports call it the last major import, which PIB does not say.
- Designed at home. The Shivalik class (P-17) was India's first indigenously designed stealth frigate, drawn by the Warship Design Bureau and built at Mazagon Dock (PIB, 13 Jul 2026).
- Built at home, in more yards. INS Vikrant (CSL, 2022) is the largest warship built in India, and on 16 October 2026 INS Samarthak became the first major warship built by an Indian private shipyard (L&T), according to PIB.
| Date | Source | How much of the pipeline is Indian |
|---|---|---|
| 25 Nov 2025 | Raksha Mantri | Every Navy and Coast Guard ship under construction is in an Indian yard |
| 31 Dec 2025 | MoD Year End Review | All 52 warships planned for induction are being built in India; orders for 75 more ships and submarines are in final stages of approval |
| 6 Mar 2026 | Raksha Mantri | All warships and submarines on order are being built in Indian yards |
| 13 Jul 2026 | PIB backgrounder | 64 of 66 ships and submarines on order are being built in India |
Indigenous content is quoted class by class: 76% for INS Vikrant, over 75% for the Nilgiri class, over 80% for the Sandhayak, Arnala and Mahe classes and over 82% for the Fleet Support Ships. The 2025 backgrounder splits shipboard machinery into Float, Move and Fight: about 90% indigenised for Float (hull, auxiliaries), about 60% for Move (propulsion) and about 50% for Fight (weapons, sensors), so weapons are where imports remain. "Built in India" is not "designed in India", so read the verb in an option. The new ships carry the BrahMos. The yards are covered on defence PSUs and the policy on defence indigenisation and exports.
The Fleet Snapshot and What Changed Recently
PIB gives no single dated total for the whole fleet. Outside trackers quote anything from about 140 to over 340 depending on whether small craft count, and an undated Ministry of Defence page speaks of about 150 ships and submarines. UPSC follows official figures, so use these dated PIB snapshots instead:
- Feb 2026: the Indian fleet at the International Fleet Review off Visakhapatnam included 60 Navy ships and three Navy submarines. That is one event, not the Navy's total.
- 2025: the MoD Year End Review lists 12 ships delivered to the Navy in the year, a list that opens with INS Surat, INS Nilgiri and the submarine INS Vaghsheer in January.
- 24 Nov 2025: INS Mahe, first Mahe-class craft (CSL), commissioned at Mumbai. 16 Dec 2025: DSC A20, first of five Diving Support Craft, commissioned at Kochi.
- 27 Feb 2026: INS Anjadip, Arnala-class craft, commissioned at Chennai.
- 3 Apr 2026: INS Taragiri, fourth Nilgiri-class frigate (MDL), commissioned at Visakhapatnam.
- 21 Jun 2026: INS Dunagiri, INS Sanshodhak and INS Agray, all GRSE-built, commissioned together at Kolkata.
- 11 Jul 2026: INS Mahendragiri, sixth Nilgiri-class frigate, commissioned at Visakhapatnam; see our explainer on INS Mahendragiri.
- 22 Jul and 12 Oct 2026: INS Malvan (Karwar) and INS Mangrol (Mumbai), Mahe-class craft, commissioned. 31 Aug 2026: INS Nipun, second diving support vessel (HSL), commissioned at Mumbai.
- 6 Oct 2026: FSS-1 "Surya", first indigenous Fleet Support Ship, launched at HSL (a launch, not a commissioning).
- 16 Oct 2026: INS Samarthak, first multi-purpose vessel and first major warship from a private yard, commissioned; read why it matters.
- 2 Nov 2026: contracts of ₹53,866.50 crore for eight Next Generation Corvettes signed with GRSE and GSL; see our corvette contracts note. 5 Nov 2026: INS Amini, Arnala-class craft, delivered.
The year's running list is on ships commissioned in 2026.
Guided Tour: Pages Under Surface Ships
Read the four type pages first, then the neighbouring Navy pages.
| Page | What it covers |
|---|---|
| Aircraft Carriers | Vikrant (old and new), Viraat, Vikramaditya and how STOBAR works |
| Guided-Missile Destroyers | Delhi, Kolkata and Visakhapatnam classes: names, missile fit, dates |
| Stealth Frigates and Corvettes | Shivalik, Talwar and Nilgiri frigates with dates; Kamorta, Arnala and Mahe |
| Amphibious and Support Ships | INS Jalashwa, landing ships, tankers, survey, diving and training ships |
| Submarines | The sub-surface half of the fleet |
| Fleet Operations | How ships form fleets and flotillas |
| Ships Commissioned in 2026 | Ship, class, date, place and builder, as a log |
Ships are grouped into commands on Naval Commands. The Indian Coast Guard builds in the same yards, the Indian Air Force shares the maritime role, and joint operations are on tri-services.
Exam pins
- INS Vikrant: India's first indigenous aircraft carrier (IAC-1), built at Cochin Shipyard, commissioned 2 September 2022, 76% indigenous, about 45,000 tonnes, STOBAR.
- Project 15B = Visakhapatnam class, four destroyers, all at MDL, the last (INS Surat) commissioned 15 January 2025.
- Project 17A = Nilgiri class, seven stealth frigates (MDL 4, GRSE 3), six commissioned by 11 July 2026; Project 17 = Shivalik class.
- The Talwar class (P-1135.6) is Russian-built; INS Tamal (1 Jul 2025) is the latest.
- The Arnala class (GRSE) and Mahe class (CSL) make 16 anti-submarine shallow water craft, replacing the Abhay-class corvettes.
- INS Samarthak (16 Oct 2026) is the first major warship built by an Indian private yard (L&T).
- 64 of 66 ships and submarines on order are being built in India (PIB, 13 Jul 2026).
- Machinery indigenisation: Float 90%, Move 60%, Fight 50% (PIB, Dec 2025).
- Landing platform dock: INS Jalashwa; new LPDs were cleared by the Defence Acquisition Council on 23 Oct 2025.
Asked in past papers
Surface-ship questions match a name to a type, or place a ship in the news of that year.
With reference to India's defence, the terms 'Surat' and 'Udaygiri' refer to
(a) coast guard patrol boats (b) cargo helicopters (c) maritime patrol aircrafts (d) warships
Answer: (d). PIB records both launched at Mumbai in May 2022: Surat is a P-15B destroyer and Udaygiri a P-17A stealth frigate; both were commissioned in 2025. Patrol boats is the tempting wrong option.
Which of the following Indian Naval Ships were decommissioned in June 2022?
(a) INS Ganga and INS Nipat (b) INS Nishank and INS Akshay (c) INS Khukri and INS Sandhayak (d) INS Gomati and INS Ranjit
Answer: (b). Press reports date the decommissioning of the missile vessel Nishank and the patrol vessel Akshay to 3 June 2022 at Mumbai. The name Akshay is back on PIB's list of Arnala-class craft.
Which one of the following ships was involved in 'Mission Sagar – II'?
(a) INS Shakti (b) INS Vikramaditya (c) INS Kesari (d) INS Airavat
Answer: (d). INS Airavat, a landing ship tank, took food aid to Sudan and other East African states in November 2020. INS Kesari, also a landing ship tank, is the tempting wrong option: it carried the first Mission Sagar in May 2020.
Two types repeat: name to type (carrier, destroyer or landing ship?) and ship to event (which ship carried which mission). Learn each ship with its type. Keep up with our daily defence notes, and practise on the NDA and CDS past-paper pages.
Practice MCQs (with answers)
- Which ship type has a flooded dock at the stern from which landing craft can sail?
- Corvette
- Landing platform dock
- Offshore patrol vessel
- Fleet tanker
- INS Samarthak, commissioned on 16 October 2026, is notable as the first major warship built by
- Mazagon Dock Shipbuilders
- A foreign shipyard
- An Indian private shipyard
- Hindustan Shipyard
- The Nilgiri-class stealth frigates are built under which project?
- Project 17A
- Project 15B
- Project 28
- Project 75I
- According to PIB's backgrounder of 13 July 2026, how many of the 66 ships and submarines on order for the Navy were being built in India?
- 66
- 62
- 60
- 64
- INS Dunagiri, commissioned in June 2026, carries the name of an earlier
- Aircraft carrier
- Kamorta-class corvette
- Leander-class frigate
- Talwar-class frigate
- Which of the following is not a name in the Arnala class of anti-submarine shallow water craft?
- Androth
- Mormugao
- Agray
- Ajay
1-b, 2-c, 3-a, 4-d, 5-c, 6-b. Q1: only an amphibious ship such as an LPD carries craft in a dock. Q2: Samarthak was built by L&T. Q3: Project 15B is the Visakhapatnam class, Project 28 the Kamorta corvettes and Project 75I a submarine project. Q4: the figure is dated; earlier PIB statements said "all". Q5: PIB says Dunagiri renews a Leander-class frigate (1977 to 2010). Q6: Mormugao is a P-15B destroyer; every Arnala-class name begins with A.
Where to Go Next
For the career side, read career in the Indian Navy. Boards ask "know your service", so carry the type table into the Personal Interview; our SSB interview tips show how. Graduates enter the Navy through the CDS course to the Indian Naval Academy, and 12th-pass candidates through the Naval wing of the NDA, covered by our NDA batches.
Frequently asked questions
What are the main types of ships in the Indian Navy?
The surface fleet has aircraft carriers, destroyers, frigates, corvettes, offshore patrol vessels, landing ships, fleet tankers and support ships, survey vessels and diving support vessels. Submarines are counted separately. Each type does a different job, from air cover at sea to coastal anti-submarine work.
Which is the largest warship in the Indian Navy?
INS Vikrant, commissioned on 2 September 2022 at Kochi, is the largest warship ever built in India, according to PIB. It is about 262.5 metres long and about 45,000 tonnes. INS Vikramaditya, bought from Russia, is of similar size, so say "largest ever built in India" for Vikrant.
What is the difference between a destroyer and a frigate?
A destroyer is the larger escort with stronger air-defence and strike weapons; the Visakhapatnam class is 163 metres and 7,400 tonnes. A frigate is a little smaller and built for all-round escort work; the Nilgiri class is about 149 metres and 6,670 tonnes. The line is one of role and size, not a fixed tonnage.
How many Indian Navy ships are built in India?
PIB's backgrounder of 13 July 2026 says 64 of the 66 ships and submarines on order for the Navy are being built in India. Earlier statements, such as the Raksha Mantri's on 6 March 2026, said all of them. Counts differ by date, so quote the figure with its date.
How are Indian Navy ships named?
There is no published rulebook, but destroyers take city names, frigates hill and mountain names (every Nilgiri-class name ends in "giri"), and small coastal craft take town or island names, one initial letter per class. The Navy also reuses names of retired ships; the 2026 INS Dunagiri renews a Leander-class frigate.
More in Indian Navy
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Sources: pib.gov.in/PressReleasePage.aspx?PRID=2283989 · pib.gov.in/PressReleasePage.aspx?PRID=2198298 · pib.gov.in/PressReleasePage.aspx?PRID=2182277 · pib.gov.in/PressReleasePage.aspx?PRID=2210154
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