New Delhi, Jan 09 (ANI): The Supreme Court on Friday quashed ongoing trials against Sunil Bharti Mittal, the chairman and managing director of Bharti Cellular Ltd, and Ravi Ruia, the promoter of Essar Group, in a case of allocation of additional spectrum. The court quashed the CBI special court's order making the two top telecom executives accused in the case. The industrialists had been summoned as accused by a special CBI court hearing the case involving the allocation of additional second 2G spectrum in 2002. Their names had not figured in the charge sheet submitted by the CBI, which was handling the case. Both Mittal and Ruia had approached the Supreme Court, challenging the order. The case relates to alleged irregularities in allocation of additional spectrum - 10 Mhz instead of 6.2 Mhz - during the NDA rule.