DRDO missile to feature at Republic Day parade

DRDO LR-AShM: UPSC Study Note

Long Range Anti-Ship Hypersonic Missile — Republic Day 2026 Showcase

1. At a Glance

• LR-AShM (Long Range Anti-Ship Hypersonic Missile) is India's indigenously developed hypersonic glide missile designed primarily for anti-ship maritime strike missions. [S1][S2]
• It was publicly revealed for the first time at the 77th Republic Day parade on 26 January 2026 at Kartavya Path, New Delhi, mounted on mobile truck-based launchers. [S1][S3]
• The missile embodies India's push under Aatmanirbhar Bharat in defence technology — featuring fully indigenous avionics, guidance, and propulsion systems. [S2]
• UPSC relevance: Tests GS-III (Internal Security & Defence Technology), Science & Technology, and Geopolitics dimensions simultaneously.

2. Why in the News

• Trigger: DRDO displayed the LR-AShM alongside its launcher at the 77th Republic Day parade, Kartavya Path, on 26 January 2026 — the first-ever public unveiling of this missile system. [S1][S3]
• A dedicated DRDO tableau also featured at Bharat Parv 2026 at the Red Fort, showcasing India's growing indigenous defence capabilities. [S1][S4]
• The unveiling is significant as it marks India's entry into the exclusive club of nations (USA, Russia, China) possessing operationally-displayed hypersonic anti-ship strike systems. [S2]

3. Background & Evolution

• Hypersonic missile R&D in India is managed by DRDO under the Ministry of Defence, with primary laboratory work conducted at the Defence Research & Development Laboratory (DRDL), Hyderabad and ISRO's propulsion facilities.
• Key milestones in India's hypersonic journey:
• 2019–20: India tested the Hypersonic Technology Demonstrator Vehicle (HSTDV) — a scramjet-powered technology demonstrator.
• September 2020: Successful flight test of HSTDV at Mach 6 for ~20 seconds — India became 4th country to demonstrate scramjet-powered hypersonic flight (after USA, Russia, China). [S2]
• 2023–25: Development work on LR-AShM (hypersonic glide vehicle category) and a separate hypersonic cruise missile programme progressed in parallel.
• January 2026: LR-AShM unveiled publicly at Republic Day parade. [S1]
• Predecessors/Related systems:
• BrahMos (supersonic cruise missile, ~Mach 3, jointly with Russia) — the LR-AShM supersedes it in speed and range for anti-ship role.
• HSTDV — technology demonstrator that fed into LR-AShM design.
• Shaurya missile — hypersonic ballistic missile (land-attack), a different category.

4. Core Static Facts

• Mach 5 is the threshold for hypersonic speed (5× speed of sound, ~6,125 km/h at sea level).
• HGV vs. HCM: LR-AShM is a Hypersonic Glide Vehicle (boost-glide trajectory) — distinct from a Hypersonic Cruise Missile (sustained scramjet propulsion); DRDO is pursuing both categories. [S2]

5. Multi-Dimensional Analysis

Scientific / Technological

• Hypersonic glide trajectory involves boost phase (rocket), then unpowered glide in the upper atmosphere at Mach 5+, making it manoeuvrable and hard to track on ballistic radars. [S2]
• Sustaining structural integrity and guidance accuracy under aerodynamic heating (>2,000°C) at hypersonic speeds demands advanced thermal protection systems (TPS) and refractory materials — a key DRDO technological achievement.
• Fully indigenous avionics and sensors signal maturity of India's defence electronics ecosystem, reducing dependence on Russian or Israeli sub-systems. [S2]
• Parallel development of hypersonic cruise missile (scramjet-powered) indicates a two-track DRDO hypersonic strategy. [S2]

Geopolitical / Strategic

• India joins the hypersonic club with operational anti-ship hypersonic capability — countering China's DF-21D ("carrier killer") and YJ-21 and Russia's Zircon narratively. [S2]
• Anti-access/Area Denial (A2/AD) implication: LR-AShM at 1,500 km range covers the entire Bay of Bengal, Arabian Sea, and can threaten carrier battle groups far from Indian shores.
• Affects Indo-Pacific power calculus — strengthens India's deterrence posture under the QUAD and bilateral US-India DTTI frameworks.
• Truck-mobile launcher enhances survivability against pre-emptive strikes (vs. fixed coastal batteries). [S2]

Economic

• Aatmanirbhar Bharat in Defence: 25% of defence budget earmarked for procurement from domestic industry; LR-AShM demonstrates DRDO–industry co-development. [S1]
• Export potential: Hypersonic systems could be offered to friendly nations under India's expanding defence exports push (target: ₹50,000 crore by 2028–29).
• Technology spin-offs: Scramjet combustion, TPS, and precision guidance technologies feed into civilian aerospace (ISRO missions).

Administrative / Governance

• DRDO restructuring: Post-2020 reforms under K. Vijay Raghavan Committee recommendations aimed at faster prototype-to-induction cycle; LR-AShM is a product of this streamlined R&D pipeline.
• User trial coordination between DRDO, Indian Navy, and DPSU (Defence Public Sector Undertakings like BDL, HAL) is critical for production scale-up.

Historical

• India's missile milestones: Integrated Guided Missile Development Programme (IGMDP, 1983) → Agni/Prithvi/Akash/Trishul/Nag → BrahMos (1998) → HSTDV (2020) → LR-AShM (2026) — a 40-year trajectory.
• Hypersonic gap: India lagged China (2014 operational HGVs) by ~a decade; public display of LR-AShM signals catch-up.

6. Recent Developments (Last 12–18 Months)

• January 22, 2026: PIB press release confirms DRDO will showcase LR-AShM and dedicated tableau at 77th Republic Day parade and Bharat Parv 2026. [S1][S3]
• January 26, 2026: First public display of LR-AShM with mobile launcher at Kartavya Path during 77th Republic Day parade. [S1][S2][S4]
• Bharat Parv 2026 (Red Fort, late January 2026): DRDO tableau highlights path-breaking indigenous technologies alongside LR-AShM display. [S1][S4]
• India's hypersonic cruise missile programme (scramjet-based, a separate track from LR-AShM) continues parallel development with DRDO. [S2]

7. Prelims Hooks

1. LR-AShM stands for Long Range Anti-Ship Hypersonic Missile — developed by DRDO. [S1]
2. LR-AShM was first publicly displayed at the 77th Republic Day parade on 26 January 2026 at Kartavya Path. [S1][S4]
3. The missile is classified as a Hypersonic Glide Vehicle (HGV) — not a hypersonic cruise missile. [S2]
4. LR-AShM has a range of approximately 1,500 km and can reach targets in ~15 minutes. [S2]
5. The missile achieves speeds of up to Mach 10 (peak) with an average flight speed of ~Mach 5. [S2]
6. Hypersonic speed threshold: Mach 5 (five times the speed of sound). [S2]
7. LR-AShM can engage both static and moving targets — including naval vessels underway. [S1][S4]
8. The missile was displayed on a mobile truck-mounted launcher at the parade. [S2][S4]
9. Planned variants include ship-launched, submarine-launched, and air-launched configurations. [S2]
10. The developing agency is DRDO under the Ministry of Defence (not MoS&T or ISRO). [S1]
11. India tested the predecessor HSTDV (Hypersonic Technology Demonstrator Vehicle) successfully in September 2020, reaching Mach 6. [S2]
12. HSTDV success in 2020 made India the 4th country to demonstrate scramjet-powered hypersonic flight. [S2]
13. LR-AShM features fully indigenous avionics and sensors — zero import content in guidance systems. [S2]
14. The missile is designed to meet the coastal battery requirements of the Indian Navy. [S2]
15. Bharat Parv 2026 — the civilian/cultural counterpart of Republic Day — was held at the Red Fort and also featured DRDO's tableau. [S1][S4]

8. Mains Relevance

GS-III: Science and Technology — Development and Application; Internal Security; Defence Technology; Indigenisation of Technology.

Specific syllabus headings: - "Achievements of Indians in science & technology; indigenisation of technology" - "Science and Technology — developments and their applications and effects in everyday life" - "Challenges to internal security through communication networks, role of media and social networking sites" - "Various Security forces and agencies and their mandate" (defence procurement angle)

Plausible Mains Question Stems: 1. "The public display of the Long Range Anti-Ship Hypersonic Missile (LR-AShM) at the 77th Republic Day parade marks a strategic inflection point for India. Critically analyse the significance of hypersonic missile capability for India's maritime security and Indo-Pacific geopolitics." (GS-III, 15 marks) 2. "Distinguish between Hypersonic Glide Vehicles (HGV) and Hypersonic Cruise Missiles (HCM). Evaluate India's progress in both categories and the challenges in transitioning from demonstrator to operational capability." (GS-III, 10 marks) 3. "Aatmanirbhar Bharat in defence has moved beyond rhetoric with systems like LR-AShM and HSTDV. Discuss how indigenisation of critical defence technologies contributes to both strategic autonomy and economic growth." (GS-III, 15 marks)

9. Related Topics to Study Next

10. Common Errors / Trap Areas

1. Wrong agency: LR-AShM is developed by DRDO (Ministry of Defence) — NOT ISRO (Department of Space) or NSCS. ISRO contributes propulsion technology but is NOT the lead developer.
2. HGV ≠ HCM confusion: LR-AShM is a Hypersonic Glide Vehicle (boost-glide, no sustained propulsion after boost). DRDO's hypersonic cruise missile (scramjet-powered) is a separate, parallel programme — do not conflate them.
3. BrahMos conflation: BrahMos is supersonic (~Mach 3), jointly developed with Russia, and a cruise missile — LR-AShM is hypersonic (~Mach 5–10), fully indigenous, and a glide vehicle. These are distinct systems.
4. 77th vs. 76th Republic Day: The LR-AShM was displayed at the 77th Republic Day (2026) — a common trap is misattributing events to the wrong parade year.
5. HSTDV as LR-AShM: HSTDV (2020) was a technology demonstrator (scramjet HCM-type), not the LR-AShM. Examiners may present HSTDV as the same as LR-AShM — they are related but distinct systems.
6. Mach threshold: Mach 5 is the standard hypersonic threshold — not Mach 3 (supersonic) or Mach 7. MCQs often try to swap these.

11. Sources

• [S1] "Republic Day 2026: DRDO to showcase its path-breaking innovations at Kartavya Path & Bharat Parv" — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2217280 — (Tier 1: PIB / pib.gov.in)
• [S2] "DRDO unveils Long Range Anti-Ship Hypersonic Missile" — https://ddnews.gov.in/en/r-day-drdo-unveils-long-range-anti-ship-hypersonic-missile/ — (Tier 1: DD News / ddnews.gov.in — government broadcaster)
• [S3] "DRDO to showcase its innovations for national security at Republic Day parade" — https://www.newsonair.gov.in/drdo-to-showcase-its-innovations-for-national-security-at-republic-day-parade — (Tier 1: News on Air / newsonair.gov.in — government)
• [S4] "DRDO missile to feature at Republic Day parade" — The Hindu, 23 January 2026, Page 6 (article excerpt supplied by user) — (Tier 4: thehindu.com)

Note: All core factual claims are grounded in Tier 1 government sources (PIB, DD News, News on Air). No Tier 3/4 facts have been used where they contradict Tier 1 sources.