DSC and DIN for Directors: What You Need Before Incorporation

A Digital Signature Certificate (DSC) is your electronic signature on a USB token. A Director Identification Number (DIN) is the lifelong number the government gives a director. Get the DSC first. The DIN for a new company's first directors, up to three of them, is applied for inside the incorporation form itself.

DSC and DIN: what is the difference?

People mix them up because both are asked for at the same time. They do different jobs. The DSC proves that you signed a form. The DIN says which director you are, across every company you ever join.

How do you get a DSC?

The government does not sell DSCs. Licensed certifying authorities do, and the CCA publishes the list of them. The CCA's own FAQ says prices can differ from one authority to another, while a certificate of the same class carries the same level of assurance whoever issues it. So you can compare prices without worrying about quality.

For company filings, ask for a Class 3 signing certificate for an individual. The CCA says the key of a Class 3 certificate must sit in a hardware device, which is why you receive a USB token and not a file.

How is your identity checked? Through Aadhaar eKYC, or through documents with a video verification. With the Aadhaar route, the CCA says no supporting papers or attestation are needed. Keep your PAN, your Aadhaar-linked mobile and your email at hand. Sellers commonly offer terms of one to three years. Since you will sign annual filings every year, a longer term saves a renewal.

How do you get a DIN?

That depends on when you join the company.

• You are a first director of a new company. Your details go into SPICe+ Part B. Rule 9 of the Companies (Appointment and Qualification of Directors) Rules, 2014 lets the form carry up to three proposed directors who have no DIN, and the DIN is allotted with the incorporation. You attach proof of identity and proof of residence.
• You join a company that already exists. You apply in Form DIR-3 with your photograph, identity proof, residence proof and the board resolution proposing your appointment. You sign it with your own DSC, and a practising CA, CS or cost accountant, or an officer of that company, verifies it. Section 154 gives the government one month to allot the number.
• You already hold a DIN. Use it. A DIN from an earlier company or LLP stays yours even if that business closed.

Why does the number exist at all? So that one person cannot hide behind several spellings of a name across many companies. The DIN ties every directorship, past and present, to one verified individual.

The order to do things in

1. List who will sign. Every subscriber (first shareholder) and every director.
2. Check for old DINs. Anyone who was ever a director or an LLP partner may have one. Search before you fill the form.
3. Buy a DSC for each person. The name on it should match the PAN exactly.
4. Register each person on the MCA portal as a business user and associate the DSC with that login.
5. File SPICe+ Part B with identity and residence proof for each director without a DIN.
6. Receive the certificate of incorporation. The new DINs come with it.
7. Add further directors later through DIR-3 if you have more than three without a DIN.

The papers each person gives are in our documents checklist for a private limited company.

A worked example: four founders, one old DIN

Ritu, Sameer, Divya and Kabir are forming a company to sell home decor online. Each takes shares and each will be a director. Ritu was a director in a company that closed in 2021, so she already has a DIN. The other three have none.

All four need a DSC. Assume a seller quotes Rs 1,500 for a two-year certificate with the token. That is our assumption, not an official price. Four DSCs cost Rs 6,000.

Now the DINs. Ritu's old DIN goes into the form. Sameer, Divya and Kabir are exactly three, so SPICe+ can allot all three. Had Ritu applied for a fresh DIN because she forgot the old one, she would have broken section 155. The penalty in section 159, as secondary sources report it, can go up to Rs 50,000, with more for each day the default continues.

And if there were a fifth founder with no DIN? The company would be formed with the first directors, and the fifth would be added afterwards through DIR-3 and a board resolution.

What do you owe after you get them?

For the DSC: renew it before it expires. An expired DSC cannot sign the commencement declaration, the annual filings or anything else. Keep the token and its PIN with you. Whoever holds both can sign in your name.

For the DIN: keep your KYC current. Until FY 2025-26 every DIN holder filed DIR-3 KYC each year. The Companies (Appointment and Qualification of Directors) Amendment Rules, 2025, notified on 31 December 2025 and in force from 31 March 2026, replaced that with a filing once in three years. ICAI's note on the change says directors who had already completed KYC next file by 30 June 2028. If you are allotted a DIN now, ask your professional when your first filing falls due. Commentary on the new rule also says a change of mobile number, email or home address is to be reported within 30 days.

The mistake people usually make

Leaving the DSC with the consultant. The token goes to the agent's office for the incorporation and never comes back. Years later the founder learns that forms were signed in their name. A DSC signature has the same legal force as your handwritten one. Take the token back, change the PIN, and ask to see each form before it is signed.

Two smaller slips cause most delays. One is a DSC issued in a name that does not match the PAN, which fails when you associate it on the portal. The other is two directors sharing one mobile number or email. Each person should use their own, because OTPs and later KYC messages go there.

Is anything about to change?

A draft of new incorporation rules, published by MCA on 8 April 2026, proposes raising the SPICe+ limit from three DINs to five. We found no final notification as on 12 Nov 2026, so plan on three.

Frequently asked questions

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