India, Aug. 25 -- Uttam (meaning excellent) is a solid state Gallium Arsenide (GaAs) based Active Electronically Scanned Array AESA radar under development by the Electronics and Radar Development Establishment (LRDE), a laboratory of the Indian Defence Research and Development Organisation (DRDO). Hindustan Aeronautics Limited (HAL) is the lead integrator and Bharat Electronics is the major supplier of subsystems. As per Project director D. Seshagiri of the Electronics and Radar Development Establishment, Uttam AESA radar is 95% indigenous, with only one imported subsystem. The building block is GaAs Monolithic Microwave Integrated Circuit (MMIC) using lithographic-type processes to produce microwave circuits on chips at very high levels o...