Company · Structural change
Our OPC is growing (or the member changed) — which forms apply?
The short answer
An OPC outgrows its single-member structure in two common ways: the member or nominee changes, or the company needs to become a private or public company. A member or nominee change goes through INC-4. Voluntary conversion into a private or public company — or the reverse — is handled through INC-6 under the incorporation rules.
What gets filed with MCA
OPC — change in member or nominee
Rule 4, Companies (Incorporation) Rules, 2014
OPC conversion into private/public company (and vice-versa)
Rule 6/7, Companies (Incorporation) Rules, 2014
The sequence
- 1Identify whether the trigger is a member/nominee change or a conversion to private/public
- 2For member or nominee changes, prepare and file INC-4 on the MCA portal
- 3For conversion, pass the required resolutions and file INC-6
- 4Update statutory registers and inform stakeholders of the new structure
Do it with us — or check it yourself first
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Questions founders actually ask
Which form covers a new nominee?
INC-4 is filed for a change in the OPC member or nominee under Rule 4 of the Companies (Incorporation) Rules, 2014.
When does an OPC convert to a private company?
When thresholds or business needs require a multi-member structure, conversion is filed through INC-6 under Rules 6 and 7 of the incorporation rules.
Can a private company become an OPC?
Yes. INC-6 also covers conversion in the other direction — from private or public company into an OPC, subject to eligibility.
Reviewed by Harun Raaj, Chartered Accountant
Founder, Harun Raaj & Associates. Last verified 2026-08-24 against MCA V3 records and ICSI reference material. Form-level deadlines and penalties live on the linked form pages and update there.