The Indian Air Force (IAF) is on the cusp of receiving the first Tejas Mk-1A fighter jets, a significant milestone in the modernization of its combat capabilities. These advanced light combat aircraft promise a substantial boost in firepower, thanks to the integration of the Astra beyond-visual-range missile, an advanced Active Electronically Scanned Array (AESA) radar, and a sophisticated electronic warfare (EW) suite.

A key highlight of the Tejas Mk1A is its integration with the Astra Mk1 BVRAAM, developed by India's Defence Research and Development Organisation (DRDO). With a range exceeding 100 kilometers, the Astra missile provides the Tejas Mk1A with a formidable stand-off capability, enabling it to neutralize aerial threats from a safe distance. The missile has advanced guidance and navigation systems, enhancing its accuracy and effectiveness in all-weather, day and night operations. A live-fire test of the Astra Mk1 missile from the Tejas Mk1A is scheduled for early August 2025. According to HAL, the successful firing of the Astra missile using the new radar is one of the last major evaluations required before the Tejas Mk1A can be fully certified for operational service with the IAF.

Another significant upgrade in the Tejas Mk1A is the incorporation of the ELM-2052 AESA radar. Unlike traditional mechanically scanned radars, the AESA radar employs a matrix of numerous transmit/receive modules to steer its beam electronically. This technology offers several advantages, including a longer detection range, the ability to track multiple targets simultaneously (up to 50 targets), and enhanced resistance to electronic jamming. The Uttam AESA radar, developed by DRDO, will be equipped on the Tejas Mk1A starting from the 41st aircraft. It can detect modern fighter aircraft from distances exceeding 200 km.

The Tejas Mk1A is equipped with a Unified Electronic Warfare (UEWS) suite to enhance its survivability in hostile environments. This system can detect and jam enemy radar and missile guidance systems, providing a robust layer of self-protection. The EW suite is considered more advanced than those on the older Mirage-2000 and more compact than those on the Su-30MKI.

Hindustan Aeronautics Limited (HAL) is committed to delivering 12 Tejas Mk1A aircraft to the IAF in 2025. The first aircraft is scheduled to roll out from HAL's second production line in Nashik by the end of July 2025, complementing the primary production facility in Bengaluru. The IAF has placed an order for 83 Tejas Mk1A aircraft. The Defence Ministry signed a contract in 2021 for 83 LCA Tejas fighter jets, including 73 LCA Tejas Mk1A fighter aircrafts and 10 LCA Tejas Mk1 Trainer aircrafts.

The Tejas Mk1A program has faced some delays, including those related to engine procurement and systems integration. GE Aerospace's failure to supply the F404-IN20 engines on time has been a significant factor.