For section 139(2) and section 139(10)

dear sir 1. what is no auditor is appointed in AGM of the company and it is the year of termination of 5 year terms of the auditor?? 2. Is sec 139(10) applicable which states that "where at any AGM, no auditor is appointed or re-appointed, the exiting auditor shall continue to be the auditor of the company??? 3.what if even a listed company to which section 139(2) is applicable fails to appoint auditor in its AGM and been the last of auditor's term?? Regards Alpesh Agrawal