Business Is it time to put PNB under prompt corrective action of RBI? Updated : May 22, 2018 04:45 PM IST Punjab National Bank (PNB) on Tuesday reported an operational loss for the first time in its history, due to greater-than-expected slippages. If the PNB comes under PCA, the bank cannot expand its branch network and cannot engage in further risky lending. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.