Why in the News?
- In September 2025, the Indian Air Force (IAF) officially retired its last two MiG-21 squadrons: 23 (Panthers) and No. 3 (Cobras), based in Chandigarh.
- This marked the end of India’s longest-serving fighter jet, closing a six-decade chapter in the country’s air combat history.
- The retirement exposed India’s fighter squadron shortfall, with the IAF operating only 29 squadrons against the sanctioned 42, underscoring the urgent need for fleet modernisation.
What is the MiG-21?
- The MiG-21 is a single-engine, single-seat supersonic fighter aircraft procured from the Soviet Union in 1963.
- Known for its delta wing design, high speed, and interceptor role, it was primarily used for air defence and quick interception of enemy aircraft.
- India inducted over 700 MiG-21s across multiple variants, with the Bison variant featuring modern radar, avionics, and missile systems.
Symbolism of MiG-21
- Represents a legacy of courage, sacrifice, and technological achievement in post-independence India.
- Reflects an ethical dilemma: balancing operational utility against pilot safety, given over 500 crashes and 170+ pilot deaths, earning it the nickname “Flying Coffin”.
- The farewell ceremony reflects national pride, but also underscores the cost of delayed modernisation in India’s air combat capabilities.
Importance of MiG-21 for India
- Played a decisive role in major conflicts:
- 1965 India-Pakistan War: Achieved the first supersonic kills in the subcontinent.
- 1971 Bangladesh Liberation War: Conducted ground attacks and established air superiority.
- 1999 Kargil Conflict: Executed high-altitude bombing and reconnaissance missions.
- 2019 Balakot Airstrike: A MiG-21 Bison engaged in operations against a Pakistani F-16.
- Symbolised India’s post-1962 defence revival and strategic ties with Russia.
- Provided lessons in long-term aircraft utilisation, pilot training, and combat tactics, shaping IAF doctrine.
Impact of MiG-21 Retirement
- Reduces IAF strength to 29 squadrons, significantly below the sanctioned 42, limiting readiness for a two-front conflict with China and Pakistan.
- Weakens air combat readiness, particularly in strategic zones such as Ladakh, Arunachal Pradesh, and the western borders.
- Increases reliance on ageing aircraft (MiG-29, Mirage 2000, Jaguar) and air defence systems to temporarily fill operational gaps.
- Highlights the strategic vulnerability and emphasizes the need for timely induction of modern fighters.
What is India doing to replace the MiG-21?
- Indigenous Programs:
- Tejas Mk1A: 180 jets planned with AESA radar, BVR missiles, and EW systems.
- Tejas Mk2: Medium-weight fighter with enhanced payload, extended range, and improved performance.
- Advanced Medium Combat Aircraft (AMCA): Fifth-generation stealth fighter under development.
- Foreign Procurement:
- Acquisition of 114 fighter jets, with Dassault Rafale currently the frontrunner.
- Procurement involves flyaway units for immediate use and domestic manufacturing in collaboration with foreign partners.
- Fleet Upgrades:
- Su-30MKI undergoing modernization under the Super-30 program.
- Mirage 2000, Jaguar, MiG-29 being upgraded to extend service life and maintain operational readiness.
| AESA Radar (Active Electronically Scanned Array Radar)
1. A modern radar that can scan and track multiple targets simultaneously without moving parts. 2. Provides faster detection, higher accuracy, and is harder to jam compared to older radar systems. BVR Missiles (Beyond Visual Range Missiles) 1. Air-to-air missiles that can hit enemy aircraft at long distances, even before they are visible to the pilot. 2. Enable pre-emptive strikes and enhance air combat safety by engaging threats from afar. EW Systems (Electronic Warfare Systems) 1. Equipment that detects, jams, or deceives enemy radar and communications. 2. Helps protect aircraft from enemy missiles and improves mission success. |
How is India modernising its air defence?
- Induction of S-400 Triumf missiles (Russia) and Akashteer air defence system (India) for multi-layered defence.
- Integration of UAVs, electronic warfare systems, AWACS, and satellite surveillance for real-time operational awareness.
- Emphasis on Make in India initiatives to reduce import dependency and strengthen domestic defence manufacturing.
| Akashteer Air Defence System (India)
1. Indigenous surface-to-air missile system for defending airspace. 2. Can target aircraft, drones, and missiles at medium range. 3. Features radar-guided targeting for accurate interception. 4. Integrated into multi-layered air defence networks with other systems. 5. Supports Make in India and reduces dependence on foreign systems. AWACS (Airborne Warning and Control System) 1. Radar system mounted on an aircraft to detect and track all aerial movements over large areas. 2. Acts as a command and control centre in the sky, coordinating friendly aircraft. 3. Provides early warning of incoming threats like missiles or enemy jets. 4. Enhances air situational awareness and decision-making for commanders. 5. Extends detection range beyond ground radars, especially in difficult terrain or over oceans. |
Strategic and Geopolitical Implications
- Low fighter squadron strength limits deterrence and rapid response capability in strategic areas.
- Rafale procurement strengthens India-France defence ties, while AMCA engine co-production with the US reduces reliance on Russian technology.
- Indigenous programs reflect India’s push for strategic autonomy and defence self-reliance, aligned with national security goals.
Challenges and Way Forward
| Challenge | Impact | Way Forward/Solution | Expected Benefit |
| Low squadron strength and delays in Tejas Mk2 / AMCA induction | Weakens air superiority, prolongs reliance on ageing fleet, reduces rapid response capability | Accelerate Tejas Mk1A induction and strengthen project management for timely delivery of Tejas Mk2 and AMCA | Boosts indigenous capability, fills squadron gap, ensures operational readiness |
| Dependence on foreign technology | Creates strategic vulnerability | Enforce technology transfer deals and encourage domestic R&D | Reduces foreign dependency and builds self-reliance |
| Ageing fleet (MiG-29, Jaguar, Mirage 2000) | Operational inefficiency | Modernize remaining aircraft | Extends fleet life, improves combat readiness |
| Risk of two- front conflict | Strains air defence capacity | Integrate S-400, Akashteer, UAVs, AWACS, and satellite surveillance | Builds a comprehensive, multi- layered air defence system |
Conclusion
The MiG-21’s retirement represents both a symbolic and strategic turning point for India. While it exposes gaps in squadron strength, operational readiness, and dependence on ageing aircraft, it also creates an opportunity for indigenous innovation and fleet modernisation. Timely induction of Tejas, AMCA, upgraded Su-30MKI, and foreign acquisitions is crucial to maintain combat readiness, strategic deterrence, and defence self-reliance.
| Ensure IAS Mains Question
Q. The retirement of MiG-21 exposes critical gaps in India’s air combat capability. Analyse the implications of low squadron strength and suggest measures to enhance operational readiness. (250 words) |
| Ensure IAS Prelims Question
Q. Consider the following statements regarding the Tejas Mk1A fighter aircraft: 1. It is equipped with AESA radar, BVR missiles, and electronic warfare systems. 2. It is a single-engine, fifth-generation stealth fighter developed indigenously. 3. It is being inducted to replace the retired MiG-21 squadrons in the Indian Air Force. Which of the statements given above is/are correct? a) 1 only b) 1 and 3 only c) 2 and 3 only d) 1, 2, and 3 Answer: b) 1 and 3 only Explanation: Statement 1 is correct: Tejas Mk1A comes with advanced avionics including Active Electronically Scanned Array (AESA) radar, Beyond Visual Range (BVR) missiles, and electronic warfare capabilities. Statement 2 is incorrect: Tejas Mk1A is a fourth-generation fighter. India’s fifth-generation stealth fighter is the Advanced Medium Combat Aircraft (AMCA), which is still under development. Statement 3 is correct: Tejas Mk1A is being inducted to replace retired MiG-21 squadrons and augment IAF strength. |
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