Appointment of Auditor not done in Agm, instead ratification is shown.

Auditor is appointed in AGM held on 27.9.2014 for 3 years and form ADT-1 is file for F.Y 1-4-214 to 31-03-2017. Now in AGM held on Sept 2017 ratification of auditor is shown instead of appointment.
Now what to do in this case as Audit for F.Y 2017-18 is due.