Patna: The bodyguard of a Janata Dal-United (JD-U) leader was killed on Tuesday in Bihar's Gaya district when a bomb wrapped in a parcel - exploded at the politician's house, police said.

"A parcel bomb has exploded at the house of JD-U's Gaya district (rural) president Abhay Kushwaha. His body guard was killed and his relative was seriously injured," said Gaya Senior Superintendent of Police Manu Maharaj.