Patna Chief Judicial Magistrate Om Prakash issued the arrest warrants against the couple on a plea by police. Sinha was replaced as principal of Ganga Devi College here by senior professor of the institution Kanchan Chakhaiyar.
Investigation in the scam had highlighted her role and the police made her a co-accused in the case. Smelling trouble, Sinha went underground last week and junior professor Dilip Kumar Verma was appointed as principal of the college.
According to senior superintendent of police Manu Maharaj, who heads the SIT to probe the scam, "Prima facie there are ample evidences against Lalkeshwar Prasad Singh. Proof of tampering in the exam copies and evaluation has been found which was in the knowledge of the ex-BSEB chairman (Lalkeshwar Prasad)".
Police had on June 11 arrested Bacha Rai, the kingpin of the toppers scandal, from Bhagwanpur police station in Vaishali district. Rai is the secretary-cum principal of controversial Bishun Rai College.