The agency today carried out searches at eleven places and said it has recovered "a large number of incriminating documents."
"The complaint relates to the allegations of mis- utilisation of foreign contribution which were received under the CSR scheme for the purpose of carrying out educational and social activities in India.
"The funds were allegedly received mainly from a foreign based company to the tune of Rs 90.72 crore in the bank accounts of a Delhi based private firm/NGO registered under the foreign contribution (Regulation) Act, 2010 for carrying out social welfare activities in the field of education," a CBI spokesperson said.
The agency alleged that Talwar and the NGO, in the name of purchasing ambulances and other articles, diverted the funds received from Europe's leading missile manufacturing company MBDA and the Airbus group. This, it claimed, was in alleged violation of the FCRA (Foreign Contribution Regulation Act).
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The agency said it registered an FIR against the accused based on a complaint of the Union Home Ministry.
"We are fully compliant with all the statutory requirements under the FCRA. We have nothing to hide. The CBI investigation is misplaced," Mir said.
Mir, who is also the lawyer for Talwar, said the aviation consultant has "nothing to do with the utilisation of foreign funds by the NGO Advantage India. All relevant records are documented and audited."
He added that the Income Tax Department had taken all the documents from their premises as part of their earlier action against them.