Parliamentary Standing Committee on Defence visits Naval Science & Technological Laboratory, Visakhapatnam

1. At a Glance

On-the-spot study visit by the Departmentally-Related Standing Committee (DRSC) on Defence to Naval Science & Technological Laboratory (NSTL), a DRDO lab at Visakhapatnam specialising in underwater weapons. [S1][S2]
Showcases the legislature's oversight of indigenous defence R&D and the Navy's underwater warfare preparedness — a convergence point for GS-II (Parliament/committees) and GS-III (Defence/S&T/Internal Security). [S1][S3]

The Standing Committee on Defence, chaired by Shri Radha Mohan Singh, conducted an on-the-spot visit to NSTL, Visakhapatnam on 20 January 2026 and witnessed live hydrodynamic testing plus a suite of NSTL-developed underwater weapons. [S1]

NSTL raised on 20 August 1969 as DRDO's premier laboratory for design, development and testing of underwater weapons and associated systems. [S2]
Varunastra heavyweight anti-submarine torpedo formally inducted into the Indian Navy on 26 June 2016 by then Defence Minister Manohar Parrikar. [S2]
DRSCs were instituted in 1993 as a mechanism for detailed parliamentary scrutiny of ministries; the Defence DRSC is one of 24 such committees serviced by Lok Sabha Secretariat. [S3]

Lab: Naval Science & Technological Laboratory (NSTL), Visakhapatnam, Andhra Pradesh. [S2]
Parent body: Defence Research and Development Organisation (DRDO), Ministry of Defence. [S2]
Committee Chair: Shri Radha Mohan Singh, BJP MP from Purvi Champaran (Bihar), 18th Lok Sabha. [S3]
Committee strength: 31 members (21 Lok Sabha + 10 Rajya Sabha); 1-year tenure. [S3]
Products displayed: Torpedoes — ALWT (Advanced Light Weight Torpedo), Varunastra (heavyweight), EHWT (Electric Heavy Weight Torpedo); Mines — MIGM (Moored Influence Ground Mine), PBGM (Processor-Based Ground Mine); Decoys — SFD, Torbuster; plus SMART, HEAUV, SWARM. [S1]
Test facility demonstrated: Sea-keeping and Manoeuvring Basin (SMB) — hydrodynamic testing on a scale-down ship model. [S1]
Varunastra specs: electric propulsion, multiple 250 kW Silver-Oxide-Zinc batteries, speed >40 knots. [S2]

Scientific / Technological
NSTL anchors India's underwater weapon ecosystem — torpedoes, mines, decoys, AUVs. [S2]
SMART (Supersonic Missile Assisted Release of Torpedo) extends ASW reach beyond conventional torpedo range. [S1]
HEAUV (Heavy-weight Autonomous Underwater Vehicle) and SWARM point to autonomous undersea systems — frontier of naval warfare. [S1]
Strategic / Geopolitical
Indigenous underwater weapons reduce import dependence and counter Chinese PLAN/PLA-N submarine presence in the IOR. [S1][S2]
Aligns with Aatmanirbhar Bharat in defence and the Navy's goal of being a fully indigenous force by 2047. [S2]
Legal / Constitutional
DRSCs derive authority from Rules 331C-331N of Rules of Procedure of Lok Sabha; mandate includes scrutiny of Demands for Grants, Bills, annual reports, long-term policy of the ministry. [S3]
"On-the-spot study visits" are a recognised committee instrument for first-hand assessment. [S3]
Ethical / Governance
Reinforces legislative oversight of executive R&D spending — a key accountability mechanism within parliamentary democracy. [S3]
Committees provide a non-partisan forum (mini-Parliament) for technical defence review, away from House floor politics. [S3]

20 January 2026: Standing Committee on Defence visits NSTL Visakhapatnam; witnesses ALWT, Varunastra, EHWT, MIGM, PBGM, SFD, Torbuster, SMART, HEAUV, SWARM. [S1]
8th Report (18th Lok Sabha) of the Committee on Defence — Demands for Grants 2025-26 covering Army, Air Force, Navy, Joint Staff, ECHS, DGAFMS. [S3]
NSTL development pipeline: next-generation lightweight torpedoes and research on supercavitation torpedoes. [S2]

NSTL is located at Visakhapatnam, not Pune or Hyderabad. [S2]
NSTL was raised on 20 August 1969. [S2]
Varunastra = heavyweight anti-submarine torpedo, inducted 26 June 2016. [S2]
SMART = Supersonic Missile Assisted Release of Torpedo (NSTL/DRDO). [S1]
MIGM = Moored Influence Ground Mine; PBGM = Processor-Based Ground Mine. [S1]
Torbuster = anti-torpedo decoy developed at NSTL. [S1]
Parliamentary Standing Committee on Defence is a Departmentally-Related Standing Committee (DRSC), constituted under Rules of Procedure of Lok Sabha. [S3]
DRSC system introduced in 1993; currently 24 DRSCs (16 serviced by Lok Sabha, 8 by Rajya Sabha). [S3]
Defence DRSC composition: 31 members (21 LS + 10 RS); chaired by an LS member. [S3]
Chairman (18th LS): Radha Mohan Singh (BJP, Purvi Champaran). [S3]
Sea-keeping and Manoeuvring Basin is an NSTL hydrodynamic test facility. [S1]
DRDO functions under the Department of Defence R&D, Ministry of Defence. [S2]

GS-II: Parliament — Functioning of committees; mechanisms of legislative oversight of the executive.
GS-III: Defence — Indigenisation of defence technology; Internal & external security; Achievements of Indians in S&T (DRDO).
Plausible stems: 1. "Departmentally-Related Standing Committees have emerged as 'mini-Parliaments' for substantive scrutiny of the executive." Discuss with reference to defence policy. (GS-II) 2. "Indigenisation of underwater warfare technology is central to India's maritime security in the Indian Ocean Region." Critically examine DRDO's contribution. (GS-III) 3. Discuss the role of DRDO laboratories such as NSTL in operationalising the Aatmanirbhar Bharat vision in defence. (GS-III)

DRDO organisation & flagship labs (NSTL, DRDL, ARDE, BARC-linkages) — institutional ecosystem.
Department-Related Standing Committees (1993 reform) — parliamentary procedure.
Aatmanirbhar Bharat in Defence / Positive Indigenisation Lists — policy framework.
Indian Navy's submarine programme (Project 75, 75I, Arihant-class) — end-user of NSTL products.
SMART, Nirbhay, BrahMos, K-series missiles — DRDO weapon families.
Indian Ocean Region strategy / SAGAR doctrine — geopolitical context.
Defence Acquisition Procedure (DAP) 2020 — procurement linkage.
PRAGATI / Public Accounts Committee vs DRSCs — committee taxonomy.

NSTL ≠ NPOL (Naval Physical & Oceanographic Lab, Kochi) — both DRDO, different mandates.
Varunastra is heavyweight ASW — not a light torpedo; don't confuse with TAL/ALWT.
DRSC on Defence is chaired by a Lok Sabha member, not Rajya Sabha; tenure is 1 year, not 5.
DRDO reports to Ministry of Defence (DDR&D), not Ministry of Science & Technology.
SMART is a missile-assisted torpedo system, not a stand-alone missile.

[S1] Press Release — Parliamentary Standing Committee on Defence visits Naval Science & Technological Laboratory, Visakhapatnam, PIB, Ministry of Defence, 20 Jan 2026 — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2216634 — (tier: 1)
[S2] Naval Science & Technological Laboratory (NSTL) — DRDO / India Science Technology & Innovation Portal — https://www.indiascienceandtechnology.gov.in/organisations/ministry-and-departments/defence-research-and-development-organisation-drdo-govt-india/naval-science-technological-laboratory-nstl — (tier: 1)
[S3] Standing Committee on Defence — Brochure & 8th Report (18th Lok Sabha), Lok Sabha Secretariat — https://sansad.in/getFile/LSSCOMMITTEE/Defence/Introduction/Brochure_for_the_Committee_on_Defence_updated_on_Sept_2023.pdf ; https://sansad.in/ls/committee/departmentally-related-standing-committees/7-Defence — (tier: 1)