"Since the accused companies did not repay the amount availed against the said fraudulent LoUs and FLCs, the PNB made the payment of Rs 6,344.97 crore (USD 965.18 million), including the overdue interest, to the overseas banks, which had advanced buyer's credit and discounted the bills against the fraudulent LoUs and FLCs issued by the PNB," the CBI''s supplementary charge sheet has alleged.