Kumar spoke to Punjab CM and his Deputy Sukhbir Singh Badal on recovery of bodies of five natives of Purnea district at Talwandi Bhai village in Firozpur district of Punjab, an official statement said here.
A girl of the victim's family is missing.
Kumar expressed deep sorrow over recovery of five bodies in a dilapidated condition from a house yesterday.
He urged his Punjab counterpart to get the matter probed thoroughly and order appropriate action.
The Bihar CM said that he has asked Chief Secretary to help families of the victims and pay them compensation.