India, Nov. 12 -- The medical education regulator is tracking the investigation into the recovery of ammonium nitrate, other explosive material, and firearms in Faridabad and the Delhi car blast, as Al Falah Medical College has emerged at the centre of the probe into them, officials said on Wednesday.

Umar Un Nabi, a college faculty member, was purportedly behind the wheel of the car that exploded. Room 13 in the college's building 17 has become central to investigations into the blast and the recovery of explosives from Faridabad's Dhauj and Fatehpur Taga villages.

Muzammil Ahmad Ganaia from Jammu and Kashmir's Pulwama occupied the room. Police believe the suspects used the room to plot logistics and transport routes for ammonium nitra...