Explanation:

• Swathi Weapon Locating Radar is a mobile artillery locating phased array radar developed by India. It is a counter-battery radar designed to detect and track incoming artillery and rocket fire to determine the point of origin for Counter-battery fir.
• It has been developed by DRDO’s Bangalore based laboratory, LRDE and the Government owned Bharat Electronics Limited (BEL).
• Weapon Locating Radar (WLR), SWATHI, developed by DRDO’s Electronics & Radar Development Establishment (LRDE), provides fast, automatic and accurate location of all enemy weapons like mortars, shells and rockets firing within in its effective zone of coverage and simultaneously handles multiples projectiles fired from different weapons at different locations.