An Approval Is Not a Warship: Project 18A, the 75% Bet and the Clock Under the Sea

The Long Road From Yes to Afloat

Here's what's actually happening. Acceptance of Necessity, the in-principle approval given to Project 18A, is a formal finding that the Navy needs something. It does not buy anything. Think of a family agreeing that it needs a larger house: no plot has been chosen, no price fixed and no builder hired.

The comparison stops there, because a warship must also be designed around weapons and sensors, some of which may not yet exist in final form. After this step come a Request for Proposal, bidding, Cabinet Committee on Security clearance and a contract.

Only then can steel be cut. An official told The Hindu the first ship would come five to ten years after contract. The earliest arithmetic therefore lands in the 2030s and that assumes everything before the contract goes quickly.

What the Last Destroyers Tell Us Project

15B is the best guide, as it is the immediate predecessor. Its ₹29,643 crore contract for four destroyers was signed in 2011, with about 72% indigenous content. The lead ship, INS Visakhapatnam, was commissioned in November 2021, a decade later.

The last, INS Surat, joined in January 2025. Project 18A is a bigger leap: 10,000 to 13,000 tonnes against 7,400, which would make these the largest warships ever built in India apart from aircraft carriers. A larger hull with more advanced systems does not obviously become quicker to build.

The usual framing says that indigenisation slows delivery. That is partly true, because a locally developed system can take longer to mature than one bought off the shelf. But 75% is only slightly above Project 15B's 72%, so the percentage alone cannot explain a decade.

The harder question is which components make up the remaining quarter and how long a delay in any one of them can hold up the ship. So the trade-off is real and the choice is defensible. A destroyer whose vital systems depend on foreign suppliers can be held hostage in a crisis, so 75% buys genuine autonomy.

The price should be managed through firm schedules and competition, not accepted as fate. Allowing private yards to compete with public sector firms is the right lever, if it is used to widen capacity.

The Threat Is Under Water

The report links the push to China and Pakistan building up underwater capability. A destroyer can hunt submarines with sonar, helicopters and anti-submarine weapons and Project 18A is expected to improve on these. But it is also a target.

A submarine's power lies in being hard to find. The numbers show where the pressure sits. India operates 19 submarines, against an estimated 65 for China and Pakistan is set to induct eight Hangor-class boats. India's Project 75(I) was still awaiting final approval in August and its first boat would come about seven years after signing.

India is therefore building toward parity in large surface combatants, while China already operates its 13,000-tonne Type 055. In the water column, the gap may be more urgent.