India’s Defence Shipyards Build Common Indigenous Supply Chain for Specialised Naval Cables

India’s major defence shipyards are moving towards a more coordinated indigenous procurement model by developing a common pool of Indian suppliers for specialised naval shipbuilding materials. Mazagon Dock Shipbuilders Limited has invited Indian MSME manufacturers and startups to participate in an Expression of Interest for the supply of EBXL cables that can be used across Mazagon Dock Shipbuilders Limited, Garden Reach Shipbuilders & Engineers, Hindustan Shipyard Limited and Goa Shipyard Limited.

The initiative represents a wider effort to create common domestic supply chains for Indian naval construction rather than allowing each shipyard to depend independently on a limited set of vendors. Such an approach can increase procurement scale, encourage localisation and make it easier for smaller Indian manufacturers to enter long-term defence shipbuilding programmes.

Four Defence Shipyards Under a Common Procurement Framework

The Expression of Interest was issued by Mazagon Dock Shipbuilders for shortlisting MSME manufacturers and startups capable of supplying EBXL cables under a rate-contract arrangement covering MDL, GRSE, HSL and GSL.

The EOI was originally issued on June 26, 2026. Its submission deadline was subsequently extended several times, including to August 14 and August 28, before being extended to September 25, 2026.

Bringing four major shipyards under a common vendor-development initiative is significant because their requirements span submarines, frigates, destroyers, patrol vessels, anti-submarine warfare ships, auxiliary vessels and specialised maritime platforms.

Instead of qualifying separately for individual yards, suitable Indian manufacturers could potentially become part of a wider defence-shipbuilding supply ecosystem.

Why Specialised Naval Cables Matter

Modern warships depend on large and complex electrical distribution and data networks linking propulsion systems, sensors, radars, weapons, navigation equipment, combat-management systems, communications equipment and platform-control systems.

Marine cables used on naval vessels must operate reliably despite vibration, salt-laden environments, heat, confined machinery spaces and other demanding operating conditions. Naval platforms also require materials with stringent fire, smoke and safety characteristics.

The localisation of such specialised components is therefore an important part of increasing indigenous content in warship construction. India already builds increasingly complex naval platforms domestically, but self-reliance in shipbuilding also depends on developing Indian suppliers for the thousands of specialised components installed inside each vessel.

MSMEs and Startups Become Part of Naval Indigenisation

The decision to specifically seek MSME manufacturers and startups reflects the changing structure of India’s defence manufacturing ecosystem. Major shipyards increasingly act as system integrators while specialised Indian companies supply equipment, electronics, materials and subsystems.

A common supplier pool gives smaller manufacturers access to demand from more than one shipyard. It can also encourage companies to invest in certification, production capacity and specialised manufacturing processes because their potential market extends beyond a single procurement programme.

This model is particularly relevant for components that are required repeatedly across multiple classes of ships but may not individually justify large dedicated production facilities.

A Broader Integrated-Procurement Strategy

The EBXL cable programme is not an isolated initiative. Indian defence shipyards have also begun pursuing common procurement arrangements for other categories of material.

A separate Expression of Interest issued in August sought MSME manufacturers and startups capable of supplying plates, sheets, equal angles, round bars, flat bars and square bars for HSL, GRSE, MDL and GSL under parallel rate contracts.

Another initiative sought suppliers of electrical items for the same four shipyards.

Together, these procurements point towards a gradual transition from fragmented yard-by-yard sourcing towards an integrated defence shipbuilding supply network.

Such coordination can improve standardisation, reduce duplication in vendor qualification and give domestic manufacturers greater visibility into future demand.

Supporting India’s Expanding Naval Construction Programme

India currently has one of its largest-ever naval shipbuilding pipelines, with warships and auxiliary vessels under construction at several public and private yards.

Mazagon Dock is central to major submarine and surface-combatant programmes, while GRSE continues to build frigates, survey vessels, anti-submarine warfare shallow-water craft and offshore patrol vessels. Hindustan Shipyard supports naval construction and refit activity, while Goa Shipyard builds patrol vessels and other specialised platforms.

GRSE states that several of its previously delivered warship classes have achieved indigenous content exceeding 90 percent, demonstrating the extent to which domestic equipment and material suppliers have already become integrated into Indian naval construction.

The next phase of indigenisation increasingly involves less visible but equally important components such as electrical equipment, cables, structural materials, machinery, control systems and specialised shipboard hardware.

From Indigenous Ships to an Indigenous Shipbuilding Ecosystem

India’s naval self-reliance effort is moving beyond the construction of ships within Indian yards. The longer-term objective is to develop the domestic industrial network required to manufacture the materials, machinery, electronics and subsystems that go into those ships.

The common vendor-development initiative involving MDL, GRSE, HSL and GSL illustrates this shift. By allowing Indian MSMEs and startups to supply multiple defence shipyards through coordinated procurement mechanisms, the shipbuilding sector can create a broader manufacturing base capable of supporting both present and future naval programmes.

---

References

Mazagon Dock Shipbuilders Limited — Expression of Interest portal, EOI MDL/GM(M)/Intg-Proc/EoI/2026/03, “Shortlisting of MSME manufacturers & Start-Ups for supply of EBXL cables for MDL, GRSE, HSL & GSL under rate contract.”

Mazagon Dock Shipbuilders Limited — EOI portal, common procurement initiatives for electrical items and structural materials involving MDL, GRSE, HSL and GSL.

Garden Reach Shipbuilders & Engineers Limited — Official Make in India and shipbuilding programme information.

---