Your doubts are important. Ravi sir will solve your doubts from 7th April, he is busy with PARAM batch of CA Inter / IPCC. For any admin related query call 9322011915 between 11am to 6pm on working days or mail at support@auditguru.in

as per reading of law its not required. its only for appointments under 139(1)
The notice to Registrar about appointment of auditor under fourth proviso to sub-section (1) of section 139 shall be in Form ADT-1.