The victim, whose body was found in an orchard, was identified as Ankit Kumar Jha, 42, a Quality Engineer of Reliance IT.
Superintendent of Police Rakesh Kumar said locals found the body in the orchard in Kashipur village under Rajapakar police station and informed the local police.
The policemen went to the spot and found it to be that of Jha on the basis of a diary and identity card recovered from his pocket, he said. The body bore multiple injury marks on neck and stomach from a sharp object, the SP said, adding it has been sent for post-mortem at Sadar hospital in Hajipur.
Jha, son of Shatrughan Jha, was a native of neighbouring Muzaffarpur district, Kumar said. A probe was on to find out the motive behind the murder of Reliance IT's Quality Engineer, whose jurisdiction was entire North Bihar, the SP added.
The engineer's murder in Vaishali district follows a similar incident in Darbhanga district three days ago in which unidentified assailants shot dead two engineers of a road construction company.