The Reserve Bank today said it has already undertaken an assessment of control systems at scam-hit Punjab National Bank and will take "appropriate supervisory action".
The country's second largest state-run lender has been rocked by a Rs 11,400-crore fraud allegedly involving billionaire diamantaire Nirav Modi.
In a statement, the central bank said it has already undertaken a supervisory assessment of control systems in Punjab National Bank (PNB).
"The fraud in PNB is a case of operational risk arising on account of delinquent behaviour by one or more employees of the bank and failure of internal controls.
"RBI has already undertaken a supervisory assessment of