What are the specific maritime security challenges in India's shallow coastal waters, and how does indigenous shipbuilding address them?

Q. What are the specific maritime security challenges in India's shallow coastal waters, and how does indigenous shipbuilding address them? (15 marks, 250-350 words)

India's littoral belt — a long mainland coastline plus island territories, major ports and dense fishing traffic — is where its economic lifelines and its softest security seams overlap. Shallow water neutralises the advantages of large blue-water warships, making purpose-built platforms and a self-reliant shipbuilding base a strategic necessity.

Specific challenges of the shallow-water domain - Sub-surface detection is hardest here: shallow, acoustically noisy waters with heavy reverberation allow conventional and midget submarines to hide close to the coast, demanding dedicated coastal anti-submarine warfare (ASW) assets [1]. - Sea-borne terrorism and infiltration: the 26/11 Mumbai attacks showed how small craft can exploit the clutter of thousands of fishing vessels — a low-intensity maritime threat rather than a conventional naval one [1]. - Mining of harbour approaches: narrow, shallow channels to ports can be blocked cheaply, requiring mine-warfare and mine-laying capability [2]. - Draught and manoeuvre limits: destroyers and corvettes cannot operate safely or persistently in these depths, leaving a capability gap between the coast guard and the blue-water fleet. - Rising submarine activity in the Indian Ocean Region pushes surveillance requirements inshore as well as outward.

How indigenous shipbuilding answers them - Tailored platform design: the Mahe-class ASW Shallow Water Craft — eight ships from Cochin Shipyard Limited, roughly 78 m long and shallow-draught — is designed specifically for coastal ASW, Low Intensity Maritime Operations (LIMO) and mine laying [1][5]. - Indigenous sensors and weapons: torpedoes, anti-submarine rockets and domestically developed underwater sensors give detection tuned to Indian littoral conditions [2]. - Aatmanirbhar Bharat: over 80% indigenous content builds an MSME supply chain and ensures refit and upgrade independence from foreign vendors [2]. - Predictable serial induction: INS Mahe joined the Western Naval Command in November 2025 and INS Malvan was commissioned at Karwar on 22 July 2026 [3][4].

Coastal security is therefore less a matter of adding tonnage than of matching platform to environment. Sustaining serial indigenous production, integrating these craft with coastal radar chains and aerial ASW assets, and deepening the domestic vendor base will convert individual commissionings into a layered, self-reliant littoral shield.

(~330 words)

Sources: 1. Simultaneous Launch of 'Mahe, Malvan and Mangrol', First Three Ships of ASW SWC (CSL) Project, PIB (30 Nov 2023) — 78 m length, coastal ASW, LIMO and mine-laying roles 2. Indian Navy Set to Commission the Latest ASW Shallow Water Craft Malvan, PIB (2026) — over 80% indigenous content; torpedoes, anti-submarine rockets, advanced sonars; mine warfare 3. INS Mahe Commissioned – India's First Mahe-Class ASW Shallow Water Craft Joins the Western Naval Command, PIB (24 Nov 2025) — first-of-class induction into Western Naval Command 4. Indian Navy Commissions INS Malvan, the Second of the Mahe-Class ASW Shallow Water Craft, PIB (22 Jul 2026) — commissioning at Karwar on 22 July 2026 5. Delivery of Malwan – The Second ASW Shallow Water Craft Built by CSL, Kochi, PIB (31 Mar 2026) — eight-ship CSL programme, second ship delivered