Police have registered a case against the son and the nephew of a Congress MLA in Madhya Pradesh for allegedly assaulting a former BJP legislator in Tikamgarh district, an official said on Thursday.

Former BJP MLA Rakesh Giri's security guard Lokendra Singh lodged a complaint in this connection, based on which the case against Akash Singh, the son of local Congress lawmaker Yadavendra Singh, and his nephew Ansh Singh, was filed, Kotwali police station's in-charge Pankaj Sharma said.