CS
2930 Points
Joined April 2016
As the auditor of your Company was dead on January 2018. So it is the case of casual vaccancy of the auditor other than the resignation. So no need to file ADT 3 as ADT 3 needs to be filed by auditor who has resigned from office.
So just conduct the board meeting within 30 days of death of auditor and pass the resolution for casual vaccancy of such auditor and appointment of new auditor.
File Form ADT 1 within 15 days of appointment to ROC and such auditor shall hold the office till the conclusion of upcoming AGM.
Make sure to take consent letter and issue the appointment letter to auditor