The DRDO also handed over a Nuclear, Biological and Chemical (NBC) recce vehicle and NBC drugs to the army.
Sources said four weapon locating radar (WLRs) were deployed along the LoC for trial and it proved to be effective as artillery fire from Pakistani side had come down after their deployment.
The WLR Swathi provides fast, automatic and accurate location of enemy weapons like mortars, shells and rockets in its 50 km range, a senior DRDO official said.
The radar can simultaneously handle multiples projectiles fired from different weapons at different locations, the defence ministry said.
Congratulating the DRDO, Parrikar said the government may consider allowing export of the WLR after the army's requirement is fulfilled.
The Army Chief said the "WLR is being used extensively along the LoC by us". The Army has sought 30 WLRs.
"Swathi could be a great equipment to ensure adversaries do not use artillery fire," said Parrikar, hoping it will be effective in containing artillery fire from across the border in Jammu and Kashmir.
In his address, Rawat hoped that modernisation of the Army would move at a much faster pace.
Speaking at the function, DRDO chairman S Christopher said "after Navy and Air Force, time has now come to handover our products to the Army and it is a proud moment for all scientists in DRDO".
The WLR has been developed by DRDO's Electronics & Radar Development Establishment (LRDE).
The NBC Recce Vehicle is capable of collecting solid and liquid samples of biologically contaminated areas, mark the nuclear and chemical contamination zone and transfer the recce data speedily to support formations.
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