Indian Air Force's Tejas Mk1A Receives Major Upgrade with JDAM-ER Integration. In a significant advancement for the Indian Air Force (IAF), the Tejas Mk1A light combat aircraft has successfully integrated the Joint Direct Attack Munition-Extended Range (JDAM-ER), enhancing its operational capabilities. This upgrade solidifies the Tejas Mk1A's status as a formidable multirole fighter, thanks to the arrival of JDAM-ER kits ordered from the United States in 2022.