Dhanusa, Nov. 28 -- An improvised explosive device was detonated at the contact office of Nepal Communist Party candidate Bikram Chaudhary in Mahottari on Thursday evening.

According to Superintendent of Police Shyam Krishna Adhikari, a pressure cooker bomb was detonated on the premises of the contact office of NCP candidate Chaudhary, who is vying for the post of Pipara Rural Municipality chief in the upcoming by-elections. "Although there was a loud explosion, the office has only sustained minor damages. There were no human casualties," Adhikari said. "Investigation is underway into the incident."

The incident took place at a time when police claimed to have tightened security as the silent hour is being observed for the November 30 e...