Tactical Airborne Platform for Aerial Surveillance-Beyond Horizon-201 or TAPAS BH-201 (Sanskrit: तपस्, tápas, "Heat") (formerly referred to as Rustom-II) is a Medium Altitude Long Endurance (MALE) unmanned aerial vehicle (UAV) being developed in India by Aeronautical Development Establishment (ADE) on the lines of General Atomics MQ-1 Predator. The first flight of the UAV took place in November 2016.