Tejas Light Combat Aircraft (LCA)

The Tejas Light Combat Aircraft (LCA) is India's flagship indigenous fighter programme, conceived in 1983 when the Government of India sanctioned the Light Combat Aircraft project to replace the ageing Soviet-era MiG-21 fleet of the Indian Air Force. The Aeronautical Development Agency (ADA), established in 1984 under the Defence Research and Development Organisation (DRDO), was constituted as the programme's design authority, while Hindustan Aeronautics Limited (HAL) serves as the principal manufacturer and integrator. The aircraft was formally named "Tejas," meaning radiance, by Prime Minister Atal Bihari Vajpayee in 2003. The programme's legal and budgetary basis flows from successive Cabinet Committee on Security (CCS) sanctions, with the original mandate framed around two objectives: replacing obsolete combat platforms and building a self-reliant domestic aerospace ecosystem in line with the later articulated Atmanirbhar Bharat and Make in India policies.

The development pathway proceeded through clearly defined gates. The Technology Demonstrator phase produced TD-1, which made its maiden flight on 4 January 2001, followed by Prototype Vehicles and Limited Series Production aircraft. The aircraft received Initial Operational Clearance (IOC) in December 2013 and Final Operational Clearance (FOC) in February 2019, the two regulatory milestones that authorise progressively wider operational employment by the IAF. Induction into squadron service began with No. 45 Squadron "Flying Daggers" in July 2016, followed by No. 18 Squadron "Flying Bullets" in 2020. Each procurement tranche requires CCS approval, defined production rates from HAL, and acceptance trials before aircraft are handed over to the operating service.

The Tejas exists in distinct configurations that mark the programme's evolution. The Mark 1 and the improved Mark 1A constitute the current production standard, the latter incorporating an Active Electronically Scanned Array (AESA) radar, an electronic warfare suite, beyond-visual-range missile capability, and aerial refuelling provisions. The under-development Tejas Mark 2, a heavier Medium Weight Fighter powered by the General Electric F414 engine, is intended to carry a greater payload and replace multiple legacy types including the Mirage 2000 and MiG-29. A naval variant for carrier operations and the Twin-Engine Deck-Based Fighter derivative extend the design lineage. The airframe uses extensive carbon-fibre composites, a tailless compound-delta wing, and a quadruplex digital fly-by-wire control system, the last developed indigenously after the United States withheld assistance following the 1998 Pokhran-II nuclear tests.

Contemporary procurement defines the programme's current significance. In February 2021 the Ministry of Defence signed a contract worth approximately ₹48,000 crore with HAL for 83 Tejas Mark 1A aircraft, the largest indigenous defence deal of its time. In 2023 the Defence Acquisition Council accorded Acceptance of Necessity for a further 97 Mark 1A jets. Deliveries have been constrained by delays in the supply of GE F404 engines from the United States, a bottleneck repeatedly raised by the Indian Air Force leadership through 2024 and 2025. Argentina and several other states have evaluated the platform for export, positioning Tejas within India's broader defence diplomacy.

The Tejas should be distinguished from adjacent programmes with which it is frequently conflated. It is not the Advanced Medium Combat Aircraft (AMCA), India's planned fifth-generation stealth fighter, which is a separate and more ambitious ADA-led effort. It differs from imported fourth-generation-plus platforms such as the Rafale, acquired from France under a 2016 government-to-government agreement, in that Tejas is domestically designed rather than purchased. As a light, single-engine fighter, it occupies a different weight and role class from the twin-engine Sukhoi Su-30MKI, which HAL produces under licence rather than as an original design. The defining distinction is intellectual-property ownership: the Tejas design authority rests with Indian institutions, a quality that licence-built aircraft do not confer.

Persistent controversies shadow the programme. Critics point to the four-decade span between sanction and full operational maturity, cost escalation, and continued dependence on foreign engines and select avionics, which complicate the self-reliance narrative. The Comptroller and Auditor General of India has, in successive reports, flagged delivery delays, deficiencies in IOC-standard aircraft, and shortfalls in maintainability metrics. The single greatest dependency remains the powerplant: the indigenous Kaveri engine failed to meet thrust requirements, forcing reliance on GE engines, and engine supply timelines have directly throttled HAL's production ramp-up. A high-profile crash in 2025 prompted renewed scrutiny, even as the programme's overall safety record across its flight-test and service history compares favourably with peer fighters.

For the working practitioner—whether a UPSC aspirant preparing General Studies Paper III, a defence desk officer, or a policy analyst—the Tejas is the central case study in Indian defence indigenisation. It illustrates the structural tension between strategic autonomy and the realities of a globalised aerospace supply chain, the institutional roles of ADA, DRDO, and HAL, and the procurement mechanics of CCS sanction and operational clearances. The programme connects directly to examinable themes including Atmanirbhar Bharat, the defence offset policy, technology denial regimes, and the export ambitions underpinning India's emerging arms diplomacy, making fluency in its history and current status essential for any analysis of India's military-industrial trajectory.