The HAL Tejas Mk1 is the original production version of India’s indigenous Light Combat Aircraft (LCA), the first Tejas variant to enter Indian Air Force service, and the historical foundation on which the later, substantially re-engineered Tejas Mk1A was built. This entry covers Tejas Mk1’s own distinct development and operational history, separate from the Mk1A, which has its own dedicated encyclopedia entry.[1]
The LCA programme was officially sanctioned in 1983 with the goal of developing an indigenous replacement for the IAF’s ageing MiG-21 fleet, targeting Initial Operational Clearance in the early 1990s. In practice, the programme took over two decades longer than planned: the prototype’s maiden flight did not occur until 2001, and the aircraft only formally entered IAF service in 2016.[1]
Tejas Mk1 received Initial Operational Clearance (IOC) in January 2011, followed by an expanded IOC-II in December 2013. IOC-standard aircraft were inducted into the IAF’s No. 45 Squadron (“Flying Daggers”) in July 2016. Final Operational Clearance (FOC) — certifying the addition of Beyond Visual Range missile capability, air-to-air refuelling, and air-to-ground weapons employment across an expanded flight envelope — was formally declared on 20 February 2019.[2][1]
Tejas Mk1 has equipped two operational IAF squadrons: No. 45 Squadron “Flying Daggers” and No. 18 Squadron “Flying Bullets,” each with a nominal strength of around 18 fighters.[1]
Tejas Mk1 maintained an accident-free operational safety record from its first flight in 2001 and 2016 induction until 12 March 2024, when an aircraft crashed near Jaisalmer, Rajasthan, during a tri-service exercise; the pilot ejected safely. A second incident occurred on 21 November 2025, when a Tejas Mk1 crashed during a display at the Dubai Airshow, resulting in the loss of Wing Commander Namansh Syal. This incident is distinct from and should not be conflated with the separate, structurally different Tejas Mk1A programme, which has its own separate operational and safety record as an independently fielded, later-generation variant.[3][4]
Despite its long and often-criticised gestation, Tejas Mk1 gave India its first genuinely indigenous, IOC/FOC-certified fourth-generation fighter, establishing the design, systems-integration, and production base — at HAL and across India’s aerospace supply chain — that the more heavily upgraded Tejas Mk1A subsequently built upon.[1]
| Type | Single-engine, single-seat multirole light combat aircraft |
| Developer | Aeronautical Development Agency (ADA) / HAL |
| Programme sanctioned | 1983 |
| Maiden flight | 2001 |
| IOC | January 2011 (IOC-II December 2013) |
| Induction | July 2016 (No. 45 Squadron) |
| FOC | 20 February 2019 |
| Operational squadrons | No. 45 Squadron, No. 18 Squadron (~18 aircraft each) |
| Successor variant | Tejas Mk1A (separate encyclopedia entry) |