ROC and secretarial compliance
ADT-1 and Auditor Appointment for a Private Limited Company
An auditor appointment event-path guide for Indian private companies covering authority, consent, eligibility, approvals, vacancies, notice evidence, and ADT-1 review.
9 min read
Short answer
ADT-1 is a notice of an auditor appointment; it does not appoint the auditor. Start by classifying the event under section 139: first auditor, appointment or reappointment at an AGM, casual vacancy, vacancy caused by resignation, or a government-company/CAG path. Confirm the appointing authority, consent, section 141 eligibility, term, meeting approval, and effective date. Then apply the current section 139 notice language, Rule 4, and live ADT-1 form to that event. Do not extend one 15-day sentence or one Board route to every appointment.
Filing a notice cannot repair an appointment that never happened
Classify the appointment event before choosing authority or time
| Event | Appointing path to verify | Core timing under section 139 | ADT-1 control |
|---|---|---|---|
| First auditor: non-government company | Board first; if it fails, members at an extraordinary general meeting after the statutory fallback is triggered. | Board within 30 days from registration; member fallback within 90 days after Board failure is communicated. | Do not infer notice applicability from the AGM appointment proviso alone; check current Rule 4, form and professional position for the first-auditor facts. |
| Auditor at first or later AGM | Members appoint or reappoint, subject to eligibility, term, rotation and applicable Audit Committee process. | Appointment follows the AGM chronology and the term rules in section 139. | Section 139(1) requires notice to the Registrar within 15 days of the meeting in which the auditor is appointed; Rule 4(2) identifies ADT-1. |
| Casual vacancy not caused by resignation | Board fills the vacancy, subject to the company facts and any Audit Committee role. | Board action within 30 days under section 139(8)(i). | Confirm current ADT-1 applicability and event fields; do not copy the AGM notice clock without checking the vacancy path. |
| Casual vacancy caused by resignation | Board fills and members approve at a general meeting. | Board within 30 days; member approval within three months of the Board recommendation. | Keep appointment notice review separate from the resigning auditor's section 140 statement and current ADT-3 duty. |
| First auditor: government-controlled company | CAG first; Board and then members follow only if the preceding authority fails within its period. | CAG within 60 days of registration; Board next 30 days; member fallback at EGM within the next 60 days. | Government/CAG facts require their own current notice and form review; ordinary private-company shorthand is unsafe. |
| Annual or casual vacancy: government-controlled company | CAG annual appointment or CAG vacancy route, with statutory Board fallback for a vacancy. | Annual appointment within 180 days from financial-year commencement; vacancy CAG within 30 days, then Board next 30 days if needed. | Confirm the specific current reporting route before preparing any company notice. |
Understand the narrow legal job of ADT-1
The fourth proviso to section 139(1) says the company informs the auditor of the appointment and files notice with the Registrar within 15 days of the meeting in which the auditor is appointed. Rule 4(2) states that this notice is in Form ADT-1. The form is therefore evidence sent after the underlying appointment path. It is not the Board or member resolution, does not create consent or eligibility, and does not determine the term.
| Question | Appointment evidence | ADT-1 notice evidence |
|---|---|---|
| Who acted? | CAG, Board, members, and Audit Committee where applicable. | Company and authorized filing or certification roles shown by the current form. |
| What was decided? | Auditor identity, event path, term, effective date, remuneration route, and vacancy facts. | Particulars of the appointment already made and its supporting meeting or resolution record. |
| What proves readiness? | Consent, eligibility certificate, independence or disqualification review, approvals, and minutes. | Correct current form, event classification, dates, attachments, signatures, fee, submission and acknowledgement. |
| What cannot it fix? | Missing authority, invalid approval, ineligible auditor, wrong term, or fabricated chronology. | The same defects; portal acceptance does not validate the appointment itself. |
Build an approval, consent, and eligibility evidence pack
| Evidence | Owner | Control question | Escalate when |
|---|---|---|---|
| Event classification | Secretarial owner | Is this first appointment, AGM, reappointment, vacancy, resignation vacancy, or government/CAG path? | Prior auditor status, resignation date, control facts, or vacancy cause is unclear. |
| Written consent | Proposed auditor | Does consent identify the company, appointment, term and proposed effective context? | Consent is missing, conditional, stale, or inconsistent with the resolution. |
| Eligibility certificate | Proposed auditor; company reviewer | Does it address prescribed conditions and section 141 criteria for the actual appointee or firm? | Firm, partner, relationship, indebtedness, limit, proceeding, or disqualification facts conflict. |
| Recommendation and approval | Audit Committee, Board, or members as applicable | Did the correct authority act in the correct sequence with quorum, notice, agenda and resolution evidence? | Authority, sequence, meeting validity, term, remuneration, or effective date is uncertain. |
| Outgoing auditor record | Company and outgoing auditor | Are resignation, vacancy cause, effective date, filings and handover consistent? | The company and auditor records disagree or a separate section 140 duty is open. |
| Notice pack | Filing preparer and independent reviewer | Does current ADT-1 apply, and do form purpose, dates, attachments, signatures and event facts agree? | The team is relying on a universal 15-day assumption or outdated form fields. |
- Match auditor or firm name, PAN or registration identifiers, address, email, membership and firm records only through restricted source documents.
- Record whether rotation applies and how the proposed term was calculated.
- Link Audit Committee recommendation, Board action, member resolution and minutes where each is required.
- Separate appointment, remuneration, resignation, removal, vacancy and notice decisions instead of combining them in one note.
- Preserve the filed form, attachments, payment, acknowledgement, status and post-filing verification with the appointment record.
Run the event from trigger to verified record
- 01
Freeze the event facts
Record company control status, first or later auditor, appointment or vacancy cause, outgoing-auditor date, appointing authority, proposed term, and relevant meeting dates. Mark unknown facts explicitly.
- 02
Test eligibility before approval
Obtain written consent and the prescribed eligibility certificate. Review section 141, appointment limits, relationship and disqualification facts, and rotation where applicable.
- 03
Use the correct approval sequence
Route through CAG, Audit Committee, Board, or members as the event requires. Preserve notices, recommendation, resolution, attendance, minutes and effective date.
- 04
Decide the notice route
Apply current section 139, Rule 4, later amendments, and the live ADT-1 form to the classified event. Record why ADT-1 applies and which clock is being used.
- 05
Cross-review before signature
Compare consent, eligibility, authority, resolution, term, dates, auditor particulars, attachments, certification and fee. Resolve discrepancies without changing historical dates.
- 06
Submit and verify
Store the submitted notice and acknowledgement in the restricted appointment file. Confirm portal status and company records afterward; carry any resignation, removal, event or prior-default issue separately until closed.
Sources and review
Published by ThynkBored. Published 13 July 2026. Content review completed 13 July 2026.
- Section 139: Appointment of auditors
India Code, Government of India. Accessed 13 July 2026.
Supports: First-auditor, AGM appointment, casual-vacancy, resignation-vacancy and government/CAG paths; Appointing authorities and event-specific periods; Section 139(1) notice within 15 days of the meeting in which the auditor is appointed.
- Section 141: Eligibility, qualifications and disqualifications of auditors
India Code, Government of India. Accessed 13 July 2026.
Supports: Auditor qualification and disqualification review precedes appointment readiness; Firm and partner eligibility, relationship, interest, indebtedness and other statutory criteria require fact review.
- Section 140: Removal, resignation of auditor and giving of special notice
India Code, Government of India. Accessed 13 July 2026.
Supports: Auditor resignation creates a separate auditor statement duty; Resignation and removal should not be collapsed into the incoming appointment notice.
- Companies (Audit and Auditors) Rules, 2014, Chapter X
Ministry of Corporate Affairs via India Code. Accessed 13 July 2026.
Supports: Rule 4 consent and eligibility-certificate controls; Rule 4(2) identifies Form ADT-1 for notice under the fourth proviso to section 139(1); Base Rules PDF must be read with later Act and rule amendments.
- Companies (Audit and Auditors) Amendment Rules, 2018
Ministry of Corporate Affairs via India Code. Accessed 13 July 2026.
Supports: Later amendment form for ADT-1 appointment notice particulars; Current review should not rely only on the form embedded in the original 2014 Rules PDF.
- Section 177: Audit Committee
India Code, Government of India. Accessed 13 July 2026.
Supports: Applicable Audit Committee responsibilities include auditor appointment and related recommendation work; Company class and committee applicability must be established before fixing the approval sequence.
This article is an educational event-path guide, not an opinion that an appointment is valid or that ADT-1 applies to a specific event. Actual authority, term, rotation, consent, eligibility, Audit Committee role, notice, form, fee, signature and deadline depend on company control and class, appointment history, vacancy cause, meeting facts, current Act, rules, amendments and live MCA form. It does not appoint an auditor, validate consent or eligibility, resolve a missed appointment, remove or reinstate an auditor, calculate penalties, or promise filing acceptance. Verify the current consolidated provisions and portal workflow with a qualified professional before action.
Identify the appointment path before preparing ADT-1
Share only the company control status, event category, trigger date, proposed appointing authority, consent and eligibility status, meeting status, and nearest decision date. ThynkBored can help structure the evidence and escalation path.
Use categories and status only. Do not send MCA credentials, OTPs, DSC PINs, DIN/PAN/Aadhaar, membership or identity numbers, personal contact data, consent letters, certificates, resolutions, minutes, audit records, financial statements, or attachments through the form. Agree a secure handoff first.
Diagnose this issueQuestions owners ask
What is ADT-1 in company compliance?
ADT-1 is the prescribed notice to the Registrar for the appointment covered by the fourth proviso to section 139(1) and Rule 4(2). It reports an appointment already made through the applicable authority and evidence path; filing ADT-1 does not itself appoint the auditor.
What documents are useful for ADT-1 readiness?
Useful evidence includes event classification, written consent, the prescribed eligibility certificate, applicable Audit Committee recommendation, Board or member approval, meeting notice and minutes, term and effective-date working, outgoing-auditor or vacancy evidence, and a reviewed current-form pack. The exact set depends on the appointment path.
Useful context for this decision
Follow the records, definitions, comparisons, and next actions connected to this page.