NEW DELHI: The Central Bureau of Investigation (CBI) is all set to seek sanction to prosecute at least 6 public servants for their alleged involvement in the Agusta-Westland chopper scam.People with direct knowledge of the matter said these include top defence ministry officials, some of who were involved in the “procurement” of helicopters during the UPA regime. They said their involvement had not come to light until now. Sources said investigation has revealed direct involvement of around five public servants in tweaking the procurement process in favour of M/s AgustaWestland in the Rs 3,600 crore VVIP chopper deal.The charge sheet, said people cited above, will put the spotlight on the “revelations” that came to light after “key middleman” Christian Michel ’s arrest. Michel was extradited from Dubai in December 2018, as first reported by ET.Sources added that the CBI has prepared the grounds and supporting evidence to substantiate its demand to prosecute the said public officials. The move may delay the agency’s supplementary charge sheet in the case, which is likely to throw light on involvement of more individuals—public servants, air force officials and private individuals.The agency “has found sufficient evidence attributing criminality against other public servants and private individuals”, one of the people cited above said, requesting anonymity.According to CBI’s charge sheet in September 2017, the VVIP chopper scandal caused a wrongful loss of €398.21 million to the government.Former Indian Air Force (IAF) chief S P Tyagi and his cousins were named in the charge sheet.A total of nine—four Indians and five foreigners—were chargesheeted by CBI in its over 30,000-page chargesheet.Others chargesheeted by CBI in 2018 include alleged European middlemen Carlo Gerosa, Michel James, Guido Haschke, former Agusta Westland CEO Bruno Spagnolini and former Finmeccanica chariman Giuseppe Orsi.Significantly, the agency had submitted that it was able to establish money trail of €62 million from countries such as Mauritius, Singapore, the UAE, Tunisia, the UK and British Virgin Island.Further, funds flow related to bribes involving nine countries was done by creating a complex web of companies, according to the charge sheet.ET was the first to report on February 6 that a 70 year old woman, resident of Dubai, who was being summoned since 2016 by the agencies has deposed against Gautam Khaitan, a key accused in the scandal. She has alleged that Khaitan met her outside India coaxing her not to join the investigation. The 70 year old witness was confronted with Khaitan last Decem ber. Her statement has been recorded under Section 164 of Criminal Procedure Code (CrPC) by a judicial magistrate, said people in the know.