New Delhi: The Supreme Court on Wednesday closed a criminal case against former prime minister Manmohan Singh in a coal block allocation case while setting aside a summoning order passed against him. The top court said there was no reason for the trial court judge to turn down closure reports of CBI and take cognisance. judge taking cognisance and summoning the appellant, we have gone through both closure reports filed by CBI. As a result, we accept the closure reports of CBI and close the matter," the bench said. Singh, industrialist Kumar Mangalam Birla, ex-coal secretary P C Parakh and three others were summoned as accused by a special court in a coal scam case pertaining to allocation of Talabira-II coal block in Odisha in 2005.