The new NDA government headed by Kumar won the trust vote on Monday.
Three MLAs of the RJD, the Mahagathbandhan’s largest constituent, had switched over to the ruling coalition before the confidence vote.
However, the deputy SP said the JD(U) MLA has accused a party colleague of offering him the princely amount, or settle for a cabinet berth in the new government, for helping the opposition grouping turn the tables on the BJP-led coalition.
“The complainant has also accused another JD(U) MLA of trying to kidnap two other legislators of the party with a view to preventing them from taking part in the trust vote. All aspects of the case are being looked into,” Prasad added.