The agency, in its order issued against the Tyagi brothers-- Sanjeev, Sandeep and Rajeev, said its investigations found that the "proceeds of crime" of this deal were allegedly used by them in the acquisition of these properties which have now been seized under law.
"Following painstaking investigations, five immovable properties of Tyagi brothers worth Rs 6.20 crore have been provisionally attached," the ED said in a statement here.
Sources said the stated value of these posh dwellings is just the book price and the actual market value could be many times more than this amount.
The agency had registered a criminal case in this deal last year under the Prevention of Money Laundering Act (PMLA) and has said that about Rs 423 crore (58 million Euro) was allegedly paid by European businessmen Christian Michel, Carlo Gerosa and Guido Haschke to swing the deal in favour of AgustaWestland in UK, a subsidiary of Ms Finmeccanica, Italy.
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The agency alleged that a bribe money of 10.50 lakh Euro (about Rs 7.68 crore) was paid by the alleged middlemen to Tyagi brothers in two tranches, first by way of bank transfer and then in cash.
The investigation, the ED said, revealed that "out of the aforesaid kickbacks, payment of Euro 10,50,000 was made to Sanjeev Tyagi, Sandeep Tyagi and Rajeev Tyagi and their companies by Guido Haschke and Carlo Gerosa through their companies Ms Gordian Services Sarl, Tunisia and Ms IDS Tunisia.