How long does the DSC association take?

The MCA portal usually associates a DSC in less than a minute once you properly configure the emSigner service and USB token. The system processes it instantly and displays a confirmation message immediately. If maintenance or high traffic affects the system, it may take slightly longer, but you do not need manual approval.

What if MCA verification fails during DSC registration?

If verification fails, it usually means the details in the DSC do not match the records in the MCA21 V3 database. Common issues include spelling differences in the name, outdated PAN details, expired DSC, or incorrect user type. You must update the mismatched information on the MCA portal or reissue the DSC with correct details before attempting registration again.

Does DSC work for MCA forms and GST/IT e-filing?

Yes, you can use the same digital signature certificate across multiple government portals, including MCA, GST, Income Tax e-filing, and DGFT, as long as the DSC class and category support those filings. However, you may need to install separate signing utilities (like emSigner or DSC signer) depending on the portal’s technical requirements.

How to change DSC if the director changes?

When a director’s DSC changes—due to expiry, role change, or new token issuance—you must first revoke or remove the old DSC from the MCA portal. After that, register the new DSC using the Associate DSC option under DSC Services. Ensure the new DSC carries the same DIN and personal details to avoid verification failures.

What is the validity period of a DSC used on the MCA portal?

A DSC is generally valid for 1–3 years, depending on the issuing authority. Once it expires, you must renew it and re-register it on the MCA portal. The portal will reject any expired certificate during association or filing. It is recommended to renew the DSC at least a week before expiry to avoid interruptions in urgent filings.

Is it mandatory to use emSigner for DSC registration on MCA?

Yes, MCA21 V3 requires the emSigner utility to read your USB token and authenticate your digital certificate. Without emSigner, the portal cannot detect your DSC, and the association process will fail. You must download, install, and run emSigner every time you register or sign forms on the MCA website, preferably using an updated version.

Can I register my DSC on MCA using a mobile device?

No. DSC registration on MCA requires a computer or laptop because USB token-based certificates cannot be used on mobile devices. The emSigner utility also supports only desktop operating systems. You must use a Windows PC or a compatible machine with the token driver installed to register or sign MCA forms.

Why is MCA not detecting my USB DSC token?

MCA may fail to detect your token if the token driver is not installed, the USB port is faulty, or emSigner is not running correctly. Restarting emSigner, switching USB ports, reinstalling drivers, or rebooting the system usually resolves the issue. If the token remains undetected, the DSC may be corrupted and require reissuance.

Can one DSC be used by multiple directors or companies?

No, authorities issue a DSC to an individual, and the individual cannot share or let multiple people use it. However, the individual can use the same DSC to file documents for multiple companies where they act as a director, partner, or authorized signatory. Using someone else’s DSC violates the law and may create compliance issues.

Do I need to update my DSC after changing my name or email?

Yes, if your legal name, PAN details, or email ID change, you must update them with the DSC provider and then re-register the updated DSC on the MCA portal. If the DSC details do not match MCA records, the verification will fail. Ensuring consistency across PAN, DSC, and MCA records is essential.

Can I remove or deactivate an old DSC from MCA?

Yes, you can revoke or remove a DSC from your MCA profile by selecting the “Clear DSC” or “Deregister DSC” option under DSC Services. This is necessary when the DSC expires or you replace it with a new token. After removal, simply register the new DSC following the usual process on the portal.

Why does DSC registration fail even when the details match?

DSC registration may fail due to technical issues such as outdated emSigner versions, portal downtime, browser incompatibility, or blocked security certificates. If you use Chrome or Edge, clearing the cache, reinstalling emSigner, and updating the token driver usually resolves the problem. Checking the DSC validity before retrying is equally important.

Can professionals like CS, CA, and CMA register their DSC on MCA?

Yes, practicing professionals such as Company Secretaries, Chartered Accountants, and Cost Accountants can register DSC for professional filings on the MCA portal. They must use their valid membership number and select the correct “Professional User” category during registration. This ensures their DSC is recognized for certifying forms and prevents verification errors during MCA21 V3 filings.

How to register a Director’s DSC in the MCA portal?

To register a Director’s DSC on the MCA portal, the director must log in to their MCA21 V3 account and go to DSC Services, then select Associate DSC. They should choose Director as the user category, enter details exactly as per their DIN and PAN records, install and run emSigner, and connect their USB DSC token. Once the portal detects the certificate, the director can confirm the details and complete the association. This DSC will then be valid for all MCA filings that require a director’s digital signature.

How to register DSC on MCA without DIN?

You can register your DSC on the MCA portal without a DIN if you are not a director. Users such as professionals, company officials, and authorized representatives can associate their DSC using their PAN, passport number, or membership number. Simply choose the correct user category (Professional, Registered User, or Authorized Representative) during DSC registration instead of selecting “Director.”

How to register DSC with PAN on the MCA portal?

To register your DSC using PAN, log in to your MCA21 V3 account and go to DSC Services and Associate DSC. Select the correct user role (such as “Registered User” or “Professional”) and enter your PAN in the required field. Ensure that the name on your DSC token matches the name on your PAN records. Once emSigner detects your certificate, confirm the details to complete registration.

How to associate DSC on MCA without DIN?

If you don’t have a DIN, you can still associate your DSC by selecting an alternative identification option, such as PAN, passport number, or membership number—based on your user type. The MCA21 V3 portal allows DSC association for various users, not just directors. Choose the right profile and enter the correct ID details to successfully link your DSC.

Can one DSC be used for multiple companies?

Yes, a single Class 3 DSC can be used to file forms for multiple companies as long as the user is authorized for each entity. You must ensure that the DSC is correctly associated with each MCA account or DIN for the respective company to avoid verification errors. However, the same DSC cannot be shared across different individuals.

What if emSigner is not detecting my DSC?

If emSigner does not detect your DSC, first ensure that the USB token is properly connected and the token driver is installed. Restart emSigner or your computer if needed. Using a different USB port or reinstalling the latest version of emSigner (v

0 or above) often resolves detection issues. If problems persist, contact your Certifying Authority for support. 21. Do foreign directors need a separate DSC?

Yes, foreign directors must obtain a Class 3 DSC issued by a Certifying Authority recognized in India. Their DSC details (passport, DIN, or other identification) must match MCA records for successful registration. Foreign directors cannot use DSCs issued outside India unless they are approved by the MCA-recognized authority.

Is DSC registration mandatory for LLP partners?

Yes, DSC registration is mandatory for designated partners in an LLP. It is required to authenticate filings such as LLP Form 3, LLP Form 4, and annual compliance forms. Each designated partner must have a valid Class 3 DSC linked to their MCA account for smooth submission of e-forms.

Don't Let Paperwork Slow You Down

Digital Signature Certificate

How to Register DSC on the MCA Portal?

Joel Dsouza

Published On:2025-12-13

Updated On:2025-12-13

14 min read

Have you tried signing an MCA form online only to realize your Digital Signature Certificate (DSC) isn’t registered yet? It feels frustrating, especially when the filing deadline is just hours away. Many directors and professionals run into this problem because they have trouble navigating how to register DSC on the MCA website.

This guide lays out the process so you can register your DSC correctly, avoid common roadblocks, and file your forms on time.

What is a Digital Signature Certificate (DSC)?

A Digital Signature Certificate (DSC) is an electronic form of your identity. It works like a secure digital stamp that identifies you when you sign documents on the MCA portal. Instead of using physical signatures, the MCA relies on DSCs to ensure authenticity, prevent tampering, and keep every filing legally valid.

Think of it as the digital equivalent of signing a document in front of a government authority, only faster, safer, and completely online.

A DSC typically contains:

Your name
PAN details
Email ID
Validity period
Encrypted signature data

The DSC comes stored in a USB token, and you must plug it in whenever you sign or upload forms.

A valid DSC helps you:

Prove your identity online
Sign e-forms securely
Prevent document tampering
Complete MCA filings without delays

Professionals and company officers use Class 3 DSCs. It is the highest level of digital signature mandated for government filings, ROC compliance, GST submissions, and tender applications. Nowadays, MCA accepts only this class because it offers maximum security and encryption.

Prerequisites Before Registering Your DSC on the MCA Portal

Before you start registering your DSC on the new MCA portal, it’s important to prepare a few things for a smooth process.

1. Valid Class 3 DSC and USB Token

Only Class 3 DSC is accepted for MCA filings.
Ensure it is issued by a certified Certifying Authority like eMudhra.
Check the validity period; expired DSCs cannot be registered.
Use a Class 3 DSC, the only type accepted for MCA filings.
Install the DSC management software provided by the certifying authority.
Keep the USB token connected whenever registering or signing forms.

You must have an active MCA account.
Ensure your DIN or company credentials are up to date.

3. Correct Personal Details

DSC details must match MCA records exactly:
- Name
- PAN
- Date of birth
- Email ID
Any mismatch can cause rejection.

4. Browser & Java Settings

MCA21 V3 works best with the latest versions of Chrome, Edge, or Firefox.
Java is no longer required for MCA DSC registration or e-form filings.
Ensure emSigner (v3.0 or latest) is installed and running before attempting DSC registration on the MCA portal or signing forms.
Allow pop-ups and enable JavaScript in your browser for smooth portal operation.

5. Backup & Renewal Plan

Keep a backup of your DSC if possible.
Plan to renew DSC before it expires to avoid filing delays.

Tip: Double-check all details and settings before starting the registration. It saves time and avoids repeated errors.

How to Associate DSC on MCA V3?

The Ministry of Corporate Affairs upgraded its portal to MCA21 V3 in May 2021. The update made company filings faster, safer, and fully digital. All major e-forms were migrated to the new system by 14 July 2025.

Every director, partner, or professional must link their DSC to the MCA’s new portal to authenticate their identity. Below is the MCA portal DSC registration process.

1. Log in to the MCA Portal

Open your browser and visit the official website.
Go to MCA Services, then DSC Services, and select Associate DSC.
Use a supported browser such as Chrome, Edge, or Firefox.

2. Select Your User Type

Choose the correct user type according to your account. Refer to the “Who Needs to Register a DSC” section for more information.
You can select from options like Director, Authorized Representative, or Manager.

Using the correct type ensures your DSC is recognized for all filings.

Selecting the wrong type may cause registration failure.

3. Enter Personal Details

Fill in all details exactly as they appear on your DSC and MCA records
- DIN, PAN, or Membership Number
- Full Name
- Date of Birth
- Email ID
- Mobile Number

enter personal details on mca infographic

Any mismatch between MCA records and your DSC details may lead to registration failure
Update your details on MCA first if your name or other information has changed

4. Download and Set Up emSigner

Download emSigner v3.0 or the latest version from the MCA portal.
Install it on your computer by following the instructions.
Launch emSigner and check that it recognizes your USB DSC token.

Restart your computer if the token is not detected immediately.

5. Connect Your USB DSC Token

Insert your USB token containing the DSC into your computer.
Open emSigner and confirm that the certificate is active and valid.
Verify that the certificate details match MCA records, including Name, DIN, and Email.
If the token is not detected, try using a different USB port or reinstalling the token driver.

6. Register the DSC on the MCA Portal

On MCA, click Register DSC.

The portal will automatically fetch your certificate details from the token. Check all details carefully, including Name, DIN or Membership Number, and certificate validity.

Click Confirm or Register to associate the DSC.

The portal will display a message confirming successful DSC association.

Step 7: Verify DSC Registration

Go to MCA Services, select DSC Services, and click View DSC.
Enter your DIN or PAN to confirm that the DSC has been associated successfully.
Once verified, your DSC is ready for filing all MCA forms.

Step 8: Use Your DSC for MCA Filings

After registering your DSC, you can use it to sign and submit various MCA e-forms. Common examples include:
- DIR-3 KYC (Director KYC Update)
- SPICe+ (Company Incorporation)
- AOC-4 (Balance Sheet & Annual Accounts) and MGT-7 (Annual Filings)
- INC-22 (Registered Office Address)
- PAS-3 (Allotment of Shares)
- DIR-12 (Director Changes)

Note that some of these forms may have updated versions. MCA21 V3 automatically supports the latest versions of all e-forms, so you can file confidently without worrying about outdated formats.

Keep your USB token connected while signing forms to ensure smooth authentication with emSigner.

Class 3 DSCs are usually valid for 1 or 2 years, depending on the issuing Certifying Authority. MCA21 V3 recommends renewing Class 3 DSCs for compliance with filings.

Confused about how to register your DSC on the MCA portal or worried about making mistakes? RegisterKaro can simplify the process for you. Our experts handle DSC login and guide you step by step so you can complete filings without stress.

When Do You Need to Re-Register Your DSC on MCA?

You may need to re-register your DSC on MCA21 V3 in several situations. Here are the most common scenarios:

DSC Expiry: Your DSC is valid only for a limited period (usually 1–2 years). Once it expires, you must renew and re-register it on the MCA portal.
Details Updated on MCA: If you update your name, email, DIN details, or membership number on MCA21 V3, you must re-register your DSC so the portal can match the new information.
New DSC Issued: When you replace your old DSC, whether due to misplacement, token damage, or certification authority change, you need to associate the new DSC again.
Token or Driver Reinstallation: If you reinstall token drivers, change your system, or format your computer, the portal may not recognize the DSC. Re-registration fixes this issue.
MCA Portal Migration or System Updates: During major portal upgrades or form migrations, you may need to re-associate your DSC to sync it with the updated MCA system.
DSC Not Working During Filings: If your DSC fails while signing forms (such as SPICe+, AOC-4, MGT-7, DIR-3 KYC), a quick re-registration often resolves the error.

Tip: Re-registering takes only a few minutes and helps prevent filing delays during peak compliance periods.

How to Check DSC Registration Status on the MCA Portal?

You can quickly verify whether your DSC is registered and active on MCA21 V3. This helps prevent failures during e-filing. Follow these simple steps to check whether DSC is registered on the MCA website:

Log in to your MCA21 V3 account using your credentials.
Go to MCA Services in the main menu.
Select DSC Services.
Click on View Associated DSC.
Enter your DIN, PAN, or Membership Number as required.
The system will display your DSC details, including:
- Certificate holder name
- Validity period
- Type of DSC
- Status (Active/Expired/Not Associated)

If the portal shows “No DSC found,” you need to register or re-register your DSC before filing any forms.

How to Update or Modify DSC on MCA Portal?

If you’ve renewed your DSC, changed your personal details, or received a new token, you must update it on the MCA portal. Here’s how to do it:

Log in to MCA21 V3 and open DSC Services.
Select Update DSC or Associate DSC on the MCA portal (depending on the option displayed).
Choose the correct user category, such as Director, Partner, or Professional.
Enter your updated details, including DIN, PAN, or Membership Number.
Launch emSigner and connect your new or updated USB token.
Allow the portal to detect your DSC certificate automatically.
Verify the displayed details and click Confirm to complete the update.
Recheck your DSC status under View Associated DSC to ensure the update is successful.

After renewals or personal detail changes, download DSC to ensure seamless filing and avoid any errors on the MCA portal.

Who Needs to Register a DSC?

You must register a DSC if you are:

A Director using DIN for e-filings
A Designated Partner in an LLP
A Company Secretary or Manager
A Practicing Professional (CA, CS, CMA)
An Authorized Signatory for company filings

Confused about DSC updates or want expert help? RegisterKaro can guide you step by step and handle the entire DSC update process efficiently.

Frequently Asked Questions

Yes, any director with a valid DIN and an active Class 2/Class 3 DSC can register it on the MCA portal. The DSC must match the director’s name, PAN, and other details recorded in the MCA database. If any mismatch exists, such as an old name, updated PAN, or incorrect DIN, the system rejects the registration until you correct the details.

Joel Dsouza

Joel Dsouza is a Chartered Accountant and compliance expert who has advised over 1,000 startups and SMEs on company registration, tax structuring, and MCA compliance. A member of ICAI and Co-Founder at RegisterKaro, Joel is committed to promoting financial literacy and simplifying India’s startup ecosystem. His deep expertise across all three levels of Finance and Portfolio Management makes him a trusted voice for entrepreneurs seeking clear, actionable guidance.

How to Register DSC on the MCA Portal?

What is a Digital Signature Certificate (DSC)?