No one was injured during the explosion early today but the private vehicle owned by Ibomcha was damaged, he said.
Ibomocha, the CMO of Chandel, lived in the Imphal West residence, the police officer said.
In another incident, a hand grenade was found at a residence in Imphal East district on the same day, the officer said.
The hand grenade was wrapped in a paper on which the name of Lourembam Rameshwar Meitei, neighbour of the owner of the house Naorem Pakison, was scribbled.