Pro DigiSign

Welcome to ProDigiSign Certifying Authority

Professional DigiSign Pvt Ltd as a brand name ProDigiSign. Company incorporated on 15th May 2021, Corporate office in Pune, Maharashtra. ProDigiSign cofounder have more than 15 Years experience in same DSC market and exclusive importer of mToken. Our System ready to operate as a certifying authority to issue Digital Signatures.

Valid signature certificate

Digital Signature is an electronic security mark that can be added to files. It allows uploading returns and forms. It allows you to verify the publisher of a file and helps verify that the file has not changed since it was digitally signed.

Our Services are 100% Secure

We are providing signing certificate and encrypted PAN based digital signature use for e-filing of ITR returns,ROC,MCA21,sale tax, tds certificates, etendering, trademark, e-procurement and legally valid Digital Certificate issued by a Licensed Registration Authority (LRA) or FC such as us.

Providing all types of Digital Signatures

We are providing all type of Digital Signatures(DSC) such as Class2, Class3, DGFT, Digital Signature use for MCA21, ROC, Incometax Returns, TDS Certificates, Sale Tax, DGS&D, IRCTC, e-Tendering, Trade mark, e-Procurement for various departments & organisations.


Our Services

To create a better experience in the digital signature and DSC Token world


DGFT can be used for Importers & Exporters. Digital Certificates for the importer and exporter community can be used to securely log on to the DGFT Online License Filing Application.

Foreign DSC

Dsc for foreign nationals helps to approve the identity and permit Foreign nationals to conduct any online exchanges securely. Class 3 Digital Signature helps the foreign national residing in the country.

Digital Signature

A Digital Signature (DSC) is an electronic security mark. This certificate ensures that you will not be sending sensitive data to a hacker or imposter site


Tokens should be FIPS certified 140-2 ,PKI based cryptographic,  this is hardware device use for store  Digital signature , e.g mToken Cryptoid (mToken)


eSign is an electronic signing service which is used for signing documents digitally from anywhere at any time. 

Document Signer

Document Signer Certificates allow you to get certificates issued in your organization’s name and use for sign Invoices, reports ,organization valuable documents etc

Class3 Individual/Org Signing& Encryption

Used for MCA21, ROC, Income Tax,GST filing , DGS & D, Northen Railway, IRCTC, e-Tendering, Trade Mark,e-procurement and other departments & organisations

PKI Services

PKI services to organizations who are seeking easy to use and legally valid PKI solution for their existing applications. 

Class 3 Individual/Org Signing

Used for MCA21, ROC, Income Tax,GST filing , DGS & D, Northen Railway, IRCTC, e-Tendering, Trade Mark,e-procurement and other departments & organisations

Frequently Asked Questions

A digital signature is an electronic form of a signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and also ensure that the original content of the message or document that has been sent is unchanged. Digital signatures are easily transportable and cannot be imitated by someone else. The ability to ensure that the original signed message arrived means that the sender cannot easily disclaim it later.

Q. Should individual’s signature and encryption certificate be different?

Yes, The signature and encryption certificate should be separate for an individual. The encryption keys are to be generated at the subscriber’s system and should be archived prior to transfer into crypto-medium. The signature keys should be generated in the crypto-medium and should not be copied.

Q. Does one require multiple certificates for different application?

No, Ideally, there should not be any requirement for different certificates, however the person holding lower assurance Class 2 certificate may require higher assurance Class 3 certificates for application which demand the same. The higher assurance Class 3 certificates can be used where ever application requires lower assurance certificate. Apart from assurance, depending on the information included in the DSC (For example PAN Number may be required by application) additional certificate may be required.

    1. You can use Digital Signature Certificates for the following:


  1. For sending and receiving digitally signed and encrypted emails.
  2. For carrying out secure web-based transactions, or to identify other participants of web-based transactions.
  3. In eTendering, eProcurement, MCA [For Registrar of Companies efiling], Income Tax [For efiling income tax returns] Applications and also in many other applications.
  4. For signing documents like MSWord, MSExcel and PDFs.
  5. Plays a pivotal role in creating a paperless office.

Class 3 : The verification requirements are
(i) ID Proof & Address Proof
(ii) Paper based application form with other supporting documents and
(iii) Forward SMS + Video Verification. The Private Key generation and storage should be in Hardware cryptographic device validated to FIPS 140-1/2 level 2.

The document signer certificate is issued for use with the software of an organization for automated authenticated response. Document signer certificate is not a replacement for the signature of the authorized signatory of the organization.

A public key infrastructure (PKI) supports the distribution, verification and revocation of public keys used for public key encryption, and enables linking of identities with public key certificates.

A PKI enables users and systems to securely exchange data over the internet and verify the legitimacy of certificate-holding entities, such as webservers, other authenticated servers and individuals. The PKI enables users to authenticate digital certificate holders, as well as to mediate the process of certificate revocation, using cryptographic algorithms to secure the process.