During searches,among others, at the premises of Om Metals Managing Director Sunil Kothari in Delhi, Abhinand Vanchiya Director NK Jain and Rajesh Kumar Jain in Kolkata on Wednesday, several documents and Rs 55.68 lakh in cash were seized from Kothari's residence and Rs 29 lakh from NK Jain's residence, the official told IANS.
The agency also seized jewellery worth over Rs one crore from the lockers of NK Jain's wife and their daughter-in-law.
Income Tax authorities had been informed about the seizure of cash, the official said.
The Central Bureau of Investigation (CBI) has alleged that the accused had laundered the money of three alleged European middlemen -- Christian Michel, Guido Haschke, and Carlo Gerosa -- given to the former Indian Air Force chief, Air Chief Marshal S.P. Tyagi, and his cousin Sanjeev alias Julie through shell companies.
The CBI official said that a request for the extradition of Gerosa had been made to the Ministry of External Affairs for onward transmission to Italy's Ministry of Justice.
The specifications were related to reducing operational flight ceiling from originally proposed 6,000 metres to 4,500 metres and bringing down the cabin height to 1.8 metres to enable the company win the contract.
The CBI said the illegal gratification was accepted through different companies in the name of consultancy services.
The agency filed a charge sheet on September 1 in the Rs 3,726 crore AgustaWestland chopper case against Tyagi, Sanjeev, then IAF Vice Chief J.S. Gujral, advocate Gautam Khaitan, Italian defence and aerospace major Finmeccanica's former chief Giuseppe Orsi, former AgustaWestland CEO Bruno Spagnolini, and three alleged European middleman.