The Light Combat Aircraft (LCA) Tejas, India's indigenous fighter jet developed by the Aeronautical Development Agency (ADA) and manufactured by Hindustan Aeronautics Limited (HAL), marked the 25th anniversary of its maiden flight on January 4, 2026. Tejas first took to the skies on January 4, 2001, over Yelahanka Air Base in Bengaluru, marking a watershed moment in India's journey towards aerospace self-reliance. Over 25 years, Tejas evolved from a technology demonstrator to an operational combat aircraft currently serving with the Indian Air Force's No. 45 Squadron (Flying Daggers) and No. 18 Squadron (Flying Bullets) at Sulur Air Force Station, Tamil Nadu. HAL has secured a contract worth ₹62,370 crore for the supply of 97 Tejas Mk-1A fighters to the Indian Air Force. The Mk-1A variant is a significant upgrade over the Mk-1, featuring Active Electronically Scanned Array (AESA) radar, an advanced Electronic Warfare (EW) suite, Beyond Visual Range (BVR) air-to-air missiles, and a fly-by-wire flight control system. The contract represents one of the largest indigenous defence procurement orders in Indian history, reflecting the government's Atmanirbhar Bharat push in defence manufacturing. Tejas is designed as a delta-wing, single-engine, multi-role combat aircraft. It is built with over 64% indigenous content under the 97-aircraft Mk1A contract, with ongoing efforts to increase this figure. The aircraft uses a General Electric F-404 engine (Mk-1), but the Mk-2 variant is planned to use the GE F-414 engine with significantly higher thrust. The Tejas programme has faced delays over its 40-year development history — the programme initiated in 1984 and IOC (Initial Operational Clearance) was achieved in 2013, with FOC (Full Operational Clearance) in 2019.