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DRDO's NMRL-led AIP System Gets First LOX Storage Module, Boosting Submarine Stealth & Endurance

Security & DefenceScience & TechHIGH
Target:UPSC GS-IIIMPSCTeachingPrelims HighMains Medium
24 Apr 2026
~2 min
Source: Indian Express
Bodies:DRDONaval Material Research Laboratory (NMRL)Indian NavyINOX India Ltd (INOXCVA)
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What This Article Covers

1.INOX India Ltd (INOXCVA) flagged off a simulated Liquid Oxygen (LOX) storage module, a first-of-its-kind component, for the Indian Navy's indigenous Air Independent Propulsion (AIP) system.

2.Developed at its Kalol facility, the module will undergo Factory Acceptance Tests as part of the AIP programme led by the DRDO's Naval Material Research Laboratory (NMRL) in Ambernath, Maharashtra.

3.The LOX storage tank is designed for the ground-based prototype of the AIP system and is critical for enabling submarines to stay submerged longer, enhancing stealth and operational capabilities.

The Big Picture
Prelims · HighMains · Medium

India took a key step towards enhancing its conventional submarine fleet's stealth and underwater endurance. A first-of-its-kind Liquid Oxygen (LOX) storage module, a critical component for the indigenous Air Independent Propulsion (AIP) system, was flagged off for the Navy, developed by INOXCVA for DRDO's Naval Material Research Laboratory.

Exam Lens

Quick Exam Facts From News

Key ComponentSimulated Liquid Oxygen (LOX) Storage Module
Developing AgencyINOX India Ltd (INOXCVA)
Project Lead LabNaval Material Research Laboratory (NMRL)
Parent OrganisationDRDO
Development LocationKalol, Panchmahal district
NMRL LocationAmbernath, Thane, Maharashtra

1-Minute Revision

  • ›Key Component: Simulated Liquid Oxygen (LOX) Storage Module
  • ›Developing Agency: INOX India Ltd (INOXCVA)
  • ›Target this Nodal Body: Naval Material Research Laboratory (NMRL) under DRDO.
  • ›Target this Technology: Air Independent Propulsion (AIP) system for conventional submarines.
  • ›Target this Component: Simulated Liquid Oxygen (LOX) storage module.

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Q1Static LinkageMedium

The indigenous Air Independent Propulsion (AIP) system module development mentioned in the news is led by which DRDO laboratory?

Q2Statement-basedHard

Consider the following statements regarding the news:

1. The flagged-off module is a simulated Liquid Nitrogen storage tank for the AIP system.

2. The module was developed by INOX India Ltd at its facility in Kalol, Gujarat.

3. The primary objective of the AIP system is to enhance the speed of submarines on the surface.

Which of the statements given above is/are correct?

Q3Data-centricEasy

As per the news, where is the Naval Material Research Laboratory (NMRL), which is leading the AIP programme, located?

Q4Application/ImpactMedium

What is the primary strategic advantage that the indigenous Air Independent Propulsion (AIP) system seeks to provide to India's conventional submarine fleet?

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