India, Nov. 12 -- A National Investigation Agency (NIA) team will visit Faridabad to take over the probe from the local police into the discovery of nearly 2,900kg of ammonium nitrate and other explosive material and firearms linked to the explosion outside Delhi's Red Fort on Tuesday. The material and arms were recovered from the rented premises linked to two accused doctors, Muzammil Ahmad and Umar Un Nabi.

Faridabad Police have sealed the biochemistry laboratory and a toilet block at Al-Falah Medical College, where Nabi worked, after forensic teams found traces of suspected ammonium nitrate-based compounds from benches and storage racks.

The accused is suspected of having siphoned off small quantities of ammonium compounds and oxidiz...