Discuss the significance of indigenous shallow-water ASW craft like the Mahe-class in strengthening India's coastal maritime security.

Q. Discuss the significance of indigenous shallow-water ASW craft like the Mahe-class in strengthening India's coastal maritime security. (15 marks, 250-350 words)

The Mahe-class Anti-Submarine Warfare Shallow Water Craft (ASW-SWC), whose second ship INS Malvan was commissioned at Karwar in July 2026, are purpose-built littoral submarine-hunters [1]. Their significance lies as much in closing an operational gap close to India's coast as in deepening self-reliant warship building.

Filling a critical littoral ASW gap - Shallow, cluttered waters near ports, estuaries and choke points degrade sonar performance and restrict the movement of large frigates; a compact 78 m, 25-knot platform can operate there effectively [3]. - Fitted for underwater surveillance, ASW operations, Low Intensity Maritime Operations (LIMO) and mine warfare, giving one hull multiple coastal roles [1]. - Named after ports of strategic importance, they carry forward the legacy of the erstwhile minesweepers that were their namesakes [3].

Strengthening the coastal security architecture - Complements outer-layer ASW assets such as P-8I aircraft and MH-60R helicopters, creating layered, defence-in-depth cover from harbour approaches to the open sea. - Distribution across bases — Mumbai for Mahe, Karwar for Malvan — spreads ASW cover along the Konkan coast under Western Naval Command [1][2]. - Serial induction matters: Malvan is the second of eight CSL ships and the sixth of 16 ASW-SWCs planned, signalling sustained numbers rather than one-off capability [1].

Advancing Aatmanirbhar Bharat in naval shipbuilding - Designed and built by Cochin Shipyard Limited, Kochi, with over 80% indigenous content [2]. - Draws on BEL, L&T Defence, Mahindra Defence, NPOL and more than 20 MSMEs, widening the defence-manufacturing and employment base [2]. - The simultaneous launch of the first three ships in November 2023 reflects maturing domestic serial production capacity [3].

That said, the interval between launch and commissioning shows delivery timelines still lag the pace of rising submarine activity in the Indian Ocean.

Overall, these craft convert coastal waters from a surveillance blind spot into a monitored zone while anchoring capability in Indian yards. Shorter build cycles, integration with coastal radar chains and unmanned underwater systems, and deeper MSME participation would translate indigenous design into credible self-reliant sea control — the essence of India's SAGAR vision of a secure maritime neighbourhood.

(~325 words)

Sources: 1. Indian Navy Commissions INS Malvan, the Second of the Mahe-class Anti-Submarine Warfare Shallow Water Craft, PIB (22 July 2026) — commissioning at Karwar; second of eight and sixth of 16 ASW-SWCs; LIMO, underwater surveillance and mine warfare roles 2. INS Mahe Commissioned – India's First Mahe-class Anti-Submarine Warfare Shallow Water Craft Joins the Western Naval Command, PIB (24 November 2025) — CSL as builder, over 80% indigenous content, BEL/L&T/Mahindra/NPOL and 20+ MSMEs, Mumbai basing 3. Mahe, Malvan and Mangrol, the First Three Ships of 08 x ASW Shallow Water Craft (CSL) Project, Indian Navy — 78 m length and 25-knot speed, naming after strategic ports and minesweeper legacy, simultaneous launch on 30 November 2023