"We wish to inform you that the bank through our foreign branches has been taking exposure with Punjab National Bank (PNB) as counterparty under various Letters of Undertakings (LoU) issued through authenticated SWIFT message," Union Bank of India said in late night filing to stock exchanges.
The bank has also purchased some Buyers Credit assets from Axis Bank through Risk Participation as a part of normal International Business Practice, it said.
Union Bank of India shares dropped 2.37 per cent to Rs 117.25 while the PNB stock fell over 3 per cent to Rs124.45 on BSE.
Yesterday, fraud-hit PNB said it will honour its bonafide commitments and entire liability will be known after the investigation.
The PNB fraud pertains to issuance of fake letters of understanding (LoU) to companies associated with billionaire jeweller Nirav Modi by errant PNB employees, which enabled these companies to raise buyers credit from international branches of other Indian lenders.
In the complaint, PNB had named three diamond firms -- Diamonds R Us, Solar Exports and Stellar Diamonds -- saying they had approached it on January 16 with a request for buyers credit for making payment to overseas suppliers.
The bank sought 100 per cent cash margins for issuing LoUs for raising buyers credit, which was contested by the firms saying they had availed of the facility from as early as 2010.
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