The CBI is following substantive leads of money trail to four nations in the case, official sources said today, refusing to divulge the name of the countries as it might affect the probe.
Officials of 17 banks which gave loan to Kingfisher Airlines (now defunct) and UB Group, promoted by Mallya, are also under the agency's scanner for their alleged involvement in the case, they said.
The CBI had in 2012 and 2014 approached IDBI Bank, which has allegedly sanctioned Rs 900 crore loan in violation of norms, to report the default. Similarly, Union Bank of India was also approached early this year by the CBI to report the alleged fraud. But both these banks, and 15 others, have not come forward with a formal complaint so far, the sources said.
The CBI had recently questioned former Chief Financial Officers-- A Raghunathan and Ravi Nedungadi-- of the erstwhile Kingfisher Airlines and UB Group respectively.
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CBI had registered a case against the then UB Group Chairman Mallya, Kingfisher Airlines, Raghunathan, and unknown officials of IDBI Bank alleging that the Rs 900 crore loan sanctioned to the airline was in violation of norms.
The agency had alleged that Kingfisher Airlines had diverted a substantial chunk of the loans secured from public sector banks to tax havens for purposes not specified in loan applications.
The 17 banks whose loans have come under the scrutiny of CBI also include UCO bank, Punjab National Bank, State Bank of India, Vijaya Bank, Bank of Baroda, Corporation Bank, Bank of India, United Bank of India, State Bank of Mysore and Indian Overseas Bank.
A consortium of banks led by SBI wants to liquidate Mallya's assets to recover the loans.