A security patrol found the bomb in the campus of Regional Institute of Medical Science and Hospital (RIMSH) on Tuesday, Dec 1.
Weighing about 5 kg, the explosive was attached with a long wire and could have been triggered by a remote control device, the police said.
The bomb disposal squad was rushed to the spot to defuse the explosive.
The explosive was found in his official quarter premises of RIMSH Superintendent Y Mohen, and he has alleged foul play saying that the bomb was planted targeting him.
Few pharmacies, located inside the hospital premises have been asked to vacate and they (pharmacies) might have hired someone to plant the bomb, Mohen alleged.