New Delhi-Show-cause notices has been issued by Chartered accountants apex body ICAI to the auditors of Punjab National Bank and Gitanjali Gems in connection with the 11,400 crore rupees fraud.ICAI has said that it has summoned a deputy general manager of PNB seeking details about the fraud at the public sector lender. ICAI has also written to the RBI requesting it to provide the list of the corporate borrowers of public sector banks having outstanding loan amount of 2,000 crore rupees and above.