auditor resignation and new appointment

KUNDAN BARANWAL (DIRECTOR) (64 Points)

08 March 2018  
Resp. Sir, 

How to deal with situation where statutory auditor of Pvt. Ltd.Co. has given his resignation in the month of 1. feb.,2018 before filing annual return and audit for F.Y. 2016-17.
in which date and month new auditor be appointed for the period 2016-17 and what new agm date should and auditor sign. date on balance sheet for the period f. y. 2016-17

thanks in advance