Singh and Swami Chakrapani went to the victim's house at village Sarawan under Kharkhauda police station limits in the district and met the girl's mother.
Speaking to reporters, Singh said BJP demands a CBI probe into the matter and was ready to extend all possible help to the family.
He also said that the Centre was ready for a CBI probe into the incident.
While speaking to reporters, Swami Chakrapani accused the state government of playing an appeasement politics and said that Mahasabha would launch an agitation against it.