New Delhi: The Central Bureau of Investigation (CBI) registered a preliminary enquiry against 11 people, including former chief of air staff S P Tyagi, and four companies in the $750m deal for purchase of 12 VVIP helicopters from AgustaWestland. Apart from Tyagi, the enquiry names ‘Julie’ Tyagi, Docsa Tyagi, Sandeep Tyagi, Gautam Khaitan and Praveen Bakshi.IANS
