Retired Lt Gen Tejinder Singh on Wednesday approached the Supreme Court seeking CBI inquiry on the alleged role of Army Chief Gen V K Singh in the purported bugging of Defence Minister's office and action against him for "misconduct". The government has already denied reports of bugging. The petition has been filed days after the Army Chief accused Tejinder Singh of offering him bribe of Rs 14 crore for purchase of Tatra trucks. Following the complaint by the Army Chief, the CBI initiated a probe into the matter.