NEW DELHI: The Supreme Court on Tuesday dismissed a petition seeking to restrain Enforcement Directorate officer Rajeshwar Singh from probing a graft case against Upendra Rai, currently in judicial custody.

A bench of Justices A K Sikri and Ashok Bhushan said the petition was not maintainable as the case lodged against Rai had nothing to do with the 2G cases pending before the bench. “It will be better if you file a separate petition to challenge the proceedings against you,” the bench told Rai.

When Rai’s counsel Raju Ramachandran raised the issue of other petitions filed against Singh for alleged possession of disproportionate assets and corruption, former attorney general Mukul Rohatgi , arguing on behalf of Singh, said such frivolous petitions were repeatedly raised by vested interests and the court had always dismissed them.

Additional solicitor general Aman Lekhi , representing the CBI, supported dismissal of the petition. ASG Vikramjit Banerjee appeared on behalf of the ED and defended its officer.

