Project 18A: Why the Navy Is Planning Bigger, Cruiser-Sized Stealth Destroyers
The Indian Navy is preparing a major upgrade of its surface fleet (the warships that fight on top of the water) under Project 18A, a programme to build next-generation stealth guided-missile destroyers.
The Defence Acquisition Council (DAC), the top defence-buying body chaired by the Defence Minister, has reportedly given in-principle approval to the project. Reported cost estimates range from over ₹75,000 crore to about ₹80,000 crore.
The ships are expected to displace more than 13,000 tonnes. That is almost double the size of India's newest destroyers (about 7,400 tonnes), and large enough to fall in the "cruiser" class by international standards.
Reported features include up to 144 vertical missile launch cells, integrated electric propulsion, long-range radars, a laser weapon against drones, and strong stealth design.
The design is led by the Navy's Warship Design Bureau, with Mazagon Dock Shipbuilders and Garden Reach Shipbuilders & Engineers expected to be involved. Bidding, final design and the construction contract are still ahead.
Project 18A: India's Next-Generation Stealth Destroyers
Project 18A, also called the Next-Generation Destroyer (NGD) programme or Project 18, is the Indian Navy's plan to build a new class of large, stealthy, guided-missile destroyers in India. A destroyer is a big, fast, heavily armed warship that protects a fleet from air, surface and underwater attacks. Project 18A ships are planned to be much bigger and carry far more missiles than any Indian destroyer so far. They are meant to replace older ships and become the main fighting ships of the Navy for the coming decades.
The reported in-principle approval moves Project 18A from an idea on paper to a formal programme. It marks the Navy's plan to jump from 7,400-tonne destroyers to cruiser-sized, missile-heavy ships built in India. The real test will be how quickly the design, contract and construction follow.
Warship Classification: Frigates, Destroyers, and Corvettes
Navies group fighting ships into classes such as corvettes, frigates, destroyers and cruisers, mainly by size and by the jobs they do. A corvette is the smallest and works mostly near the coast. A frigate is medium-sized and often hunts submarines or escorts other ships. A destroyer is larger, carries more weapons, and protects the whole fleet, especially from air and missile attack.
Project 18A blurs the old labels. It is called a destroyer, but by size it fits the cruiser class. This shows how modern destroyers are growing to carry more missiles, sensors and power.
Defence Acquisition Procedure (DAP) 2020
The Defence Acquisition Procedure is the Ministry of Defence's rulebook for buying weapons, ships, aircraft and other big equipment for the armed forces. It sets out how to decide what to buy, from whom, how to test it and how to sign the contract. DAP 2020 strongly prefers equipment designed and made in India.
The reported DAC clearance for Project 18A is an AoN-stage decision. It confirms that the Navy needs these ships and that they should be built in India, but the design, bidding and contract stages under the procurement rules still lie ahead.
- Project 18A: next-generation stealth guided-missile destroyers for the Indian Navy
- Reported cost: ₹75,000 to 80,000 crore; in-principle approval reported from the DAC
- Reported displacement: 13,000+ tonnes, cruiser-sized (Project 15B: about 7,400 tonnes)
- Up to 144 VLS cells (China's Type 055: 112; US Arleigh Burke Flight III: 96)
- Reported weapons: BrahMos-NG, Barak-8 ER, 127 mm gun, 30 mm CIWS, laser weapon, Varunastra torpedoes
- Integrated Electric Propulsion; about 75% indigenous content; range about 4,500 nautical miles at 18 knots
- Design: Warship Design Bureau; builders expected: MDL (Mumbai) and GRSE (Kolkata)
- Project 15B ships: Visakhapatnam (2021), Mormugao (2022), Imphal (2023), Surat (2025)
- First Indian Navy destroyer: INS Rajput, commissioned 4 May 1980, decommissioned 21 May 2021