BEL Battle Field Surveillance Radar
The PJT-531 Battle Field Surveillance Radar – Short Range (BFSR-SR) is a man portable 2D short-range battlefield and perimeter surveillance radar developed by the Indian Defence Research and Development Organisation (DRDO). The BFSR has been designed by DRDO's Bengaluru-based laboratory, the Electronics and Radar Development Establishment (LRDE) and is being manufactured by Bharat Electronics Limited (BEL).
Source: Wikipedia — BEL Battle Field Surveillance Radar (CC BY-SA 4.0)