CBI has registered 22 cases against certain officials including Chief Managers of PNB and others on a complaint from the Bank.Searches by CBI were conducted at the office and residential premises of accused at 47 places in Madya Pradesh, Haryana, Punjab, Uttar Pradesh, Maharashtra and Delhi.The bank in its complaint alleged that certain officials of the Bank fraudulently sanctioned and disbursed loans to private persons dealing in the business of coal during the period from 2011 to 2016.