Imphal, September 27: For the second time within a span of one month, unidentified persons left a bomb (hand-grenade) at the Kwakeithel Moirangpurel Leikai residence of Potsangbam Jadumani, who is the SE of Electricity Department.

The bomb was found inside a flower pot placed on the veranda of the house and was detected at around 7 pm yesterday.

Police have retrieved the bomb.

On September 16 last, another bomb had also been left in a similar manner at the residence of the SE.