Guide
DIN and DSC: the two IDs every Indian company director must hold.
The Director Identification Number proves who you are to the MCA; the Class 3 digital signature proves you signed the filing. Both are individual, both are cheap, and both quietly expire or deactivate if you ignore the calendar.
Short answer: a DIN is a one-time, lifetime ID allotted under s.153–159 of the Companies Act 2013 — every director needs one before appointment (s.152(2)), and no person may hold more than one (s.155). A Class 3 DSC is the digital signature the MCA accepts for e-filing, issued under the IT Act 2000 by licensed Certifying Authorities. The annual DIR-3 KYC that used to fall due every 30 September is now a triennial intimation under the Amendment Rules 2025 (in force 31 March 2026), due 30 June — fee nil on time, ₹5,000 fee under G.S.R. 300(E) if late or to re-activate a deactivated DIN, ₹500 for every change filing under rule 12A(2).
Who needs a DIN
Every director — minimum 2 for a private company, 3 for public, 1 for OPC (s.149(1)). One DIN per person, for life (s.155).
Class 3 DSC
The only DSC class the MCA accepts for e-filing — issued against your PAN by licensed Certifying Authorities, valid 1–2 years.
KYC every 3 years
DIR-3 KYC is triennial from 31 March 2026 — next due 30 June 2028 for directors whose KYC is current. Fee under G.S.R. 300(E): nil on time, ₹5,000 late or for re-activation, ₹500 per change filing (rule 12A(2)).
Who can be a director: s.149, s.164, s.165
Section 149(1) fixes the board: at least three directors for a public company, two for a private company, one for an OPC, and a maximum of fifteen — beyond which a special resolution is needed. Section 152(2) makes the DIN a precondition: every individual intending to be appointed must apply for one before the appointment. The eligibility tests are in s.164 — a person is disqualified who is of unsound mind, an undischarged insolvent, or has been convicted of an offence involving moral turpitude with imprisonment of six months or more. The provision that catches founders is s.164(2): being a director of a company that failed to file financial statements or annual returns for three consecutive financial years, or failed to repay deposits, disqualifies you from every board in India for five years. And s.165 caps directorships at twenty companies at a time — no more than ten public — with a fine for exceeding the limit.
Board minimums (s.149(1))
Private: 2 · Public: 3 · OPC: 1 · Maximum 15, extendable by special resolution.
The s.164(2) trap
3 years of missed filings or unpaid deposits in one company = 5-year disqualification in every company.
The DIN: s.153–159, and how it is obtained
The Director Identification Number is an 8-digit unique identifier allotted under s.153–154. It is personal and permanent: s.155 bars a person from holding more than one DIN, s.156 requires the director to intimate the DIN to every company they join within fifteen days, s.157 obliges the company to report it, and s.158 requires it to be quoted in specified documents. Contravention is punishable under s.159. During incorporation, the DINs of the first directors are applied for inside SPICe+ Part B — the same form that reserves the name and incorporates the company. For a director joining an existing company, the route is Form DIR-3 on the MCA portal at ₹500 per applicant under the Companies (Registration Offices and Fees) Rules, 2014. A DIN never expires, but it can be deactivated for missed KYC — which is why the DIR-3 KYC cycle below matters.
Class 3 DSC: what it is and why the MCA insists on it
Digital signatures are authenticated under s.15 of the Information Technology Act 2000, and the trust classes are defined by the IT (Certifying Authorities) Rules 2000. Class 3 is the highest assurance class — the applicant's identity is verified against pre-verified databases, which is why the MCA accepts only Class 3 certificates for e-filing. The certificate is issued by Certifying Authorities licensed under s.21 of the IT Act — e-Mudhra, Sify, NSDL e-Gov, Capricorn and VSign are the common ones — and comes on a USB crypto token that holds the private key. For an Indian national the certificate is issued against the PAN; a foreign director can obtain one on a passport basis for MCA filings. Validity is typically one to two years, and renewal must happen before expiry — the MCA portal rejects e-forms signed with an expired DSC, which makes DSC runway a real scheduling constraint around AGM and filing season.
DIR-3 KYC: the new triennial cycle (from 31 March 2026)
Rule 12A of the Companies (Appointment and Qualification of Directors) Rules, 2014 governed the old annual KYC. The Companies (Appointment and Qualification of Directors) Amendment Rules, 2025 — notified 31 December 2025, in force from 31 March 2026 — replaced the annual filing with a KYC intimation once every three financial years, due by 30 June of the relevant year. A director whose KYC is current is next due 30 June 2028; any other director should confirm the due date with their CA. Fees under G.S.R. 300(E), item VII: nil if filed within the rule 12A(1) timeline; ₹5,000 if filed after it or for DIN re-activation; ₹500 for every filing for a change, any time a detail changes (rule 12A(2)). The same simplified form now also serves to update your mobile number, email and residential address, and to re-activate a DIN that was deactivated for non-compliance.
Triennial, not annual
One intimation every 3 years, due 30 June — next due 30 June 2028 for compliant directors.
Missed it?
DIN deactivated → no MCA e-filing until re-activated; ₹5,000 fee under G.S.R. 300(E), item VII(ii) on late or re-activation filings.
DIN vs DSC: side by side
| Aspect | DIN | Class 3 DSC |
|---|---|---|
| What it is | 8-digit Director Identification Number (s.153, Companies Act 2013) | Class 3 digital signature certificate (s.15, IT Act 2000) |
| Issued by | MCA / Central Government, one per person (s.154, s.155) | Licensed Certifying Authorities — e-Mudhra, Sify, NSDL, Capricorn, VSign (s.21, IT Act 2000) |
| Identity basis | PAN (Indian) or passport (foreign director) | PAN for individuals; passport basis for foreign directors |
| When you get it | SPICe+ Part B at incorporation, or Form DIR-3 later | Before first e-filing — every director signs with their own DSC |
| Cost | ₹500 per applicant (Fees Rules, 2014) | ₹1,000–₹3,000 per year depending on validity and CA |
| Renewal | Lifetime, but DIR-3 KYC every 3 years from 31 Mar 2026 | Renew before expiry; expired DSC rejects filings |
Frequently asked questions
Can I be a director of a private limited company without a DIN?
No. Section 152(2) of the Companies Act 2013 requires every individual intending to be appointed as a director to apply for a Director Identification Number first, and section 149(1) requires a private company to have at least two directors. During incorporation the first directors get their DINs through SPICe+ Part B; directors joining an existing company apply through Form DIR-3 (₹500 per applicant under the Companies (Registration Offices and Fees) Rules, 2014). No DIN, no appointment — any resolution appointing a director without a DIN is defective from the start.
How many companies can one person be a director of?
Section 165(1) caps directorships at 20 companies at the same time, of which not more than 10 may be public companies, and contravention attracts a fine under s.165(2). The cap that actually disqualifies founders is different: under s.164(2), a person who was a director of a company that failed to file financial statements or the annual return for three consecutive financial years, or failed to repay deposits or interest, is disqualified from being a director of any company for five years. One defaulting shell company can cost you the right to sit on any board — this is the single most common DIN-related surprise we see.
Can an NRI or foreign national be a director without a PAN?
Yes. A foreign national can obtain a DIN by applying through Form DIR-3 (or SPICe+ during incorporation) with a passport as identity, and can obtain a Class 3 digital signature issued on a passport basis for MCA e-filing. The DIN itself is PAN-agnostic — PAN is the identity document used for the DSC, not the DIN. A foreign director still needs to satisfy the eligibility requirements of s.164 and consent to appointment under s.152, and the company must report the directorship in its returns under s.157.
What happens if I miss the DIR-3 KYC deadline?
Your DIN is marked deactivated, and you cannot sign MCA e-forms — including annual filings — until it is re-activated. Under the Companies (Appointment and Qualification of Directors) Amendment Rules 2025, in force from 31 March 2026, DIR-3 KYC is now a triennial intimation due by 30 June of the relevant year (directors whose KYC is current are next due 30 June 2028); for any other director, confirm the due date with your CA. Fees under G.S.R. 300(E), item VII: nil if filed within the rule 12A(1) timeline; ₹5,000 if filed after it or for DIN re-activation; ₹500 for every filing for a change, any time a detail changes (rule 12A(2)). The same form also updates your mobile number, email and residential address.
Do I need a separate DSC for every company I am a director of?
No. A Class 3 DSC belongs to the individual — it is issued against your PAN — and one valid DSC signs your filings across every company where you are a director, up to its expiry. What you cannot do is use an expired DSC or let the certificate lapse mid-year: e-forms signed with an expired DSC are rejected by the MCA portal, and a renewal typically takes a few working days. Keep at least 60 days of runway on your DSC before every filing season.
Next steps
Hub Guide · ROC Annual Filing
Go deeper — the ROC Annual Filing hub
The DIN lifecycle ends in DIR-3 KYC — one pillar of the annual ROC stack alongside MGT-7/MGT-7A (s.92) and AOC-4 (s.137), with additional fees under the s.403 proviso. Our firm's hub walks through each filing, statute-cited.
Open the hub guide