Digital Signature Certificate

Types of DSC as per your usage

Get the Best Digital Signature Certificate Company (Agency) in Kolkata

class 3 DSC combo certificates

For Income Tax/MCA (ROC)/GST

Individual Class 3 Sign
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class 3 DSC certificates

For E-Tender

Organization Class 3 Sign & Encryption
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Digital Signature Company in Kolkata

For Foreign Trade (IET/DGFT)

IET(DGFT) Class 3 Sign
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Digital Signature Company in Kolkata

For Director's KYC

Individual Class 3 Sign
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Class 3 organization conbo Digital Signature Certificate

For Trademark

Individual Class 3 Sign
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For IREPS (Indian Railway)

Organization Class 3 Sign & Encryption
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Organization Class 3 Sign
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For Multiple Purpose

Organization Class 3 Sign & Encryption
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For Other Purpose

Individual Class 3 Sign
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Create new paperless DSC in 3 ways of verifications.

Select your conveninent verification option:

Offline Aadhaar

No document required

PAN Based

Only soft documents required

Existing ALLDSC eKYC

No document required

Details of DSC

About DSC ( Digital Signature Certificate )

Digital Signature Certificates or DSC or Digital Signature are being adopted by various government agencies and now is a statutory requirement in various applications.

ALL DSC offers different class of certificates to help organization and individuals secure online transactions with legal validity as per the Indian IT Act, 2000.

ALL DSC certificates conform to x.509 standard of Public Key Infrastructure (PKI) in India where in additionally these are issued as per IVG and IOG guidelines issued by the office of Controller of Certifying Authorities.

There are various Type and Class of DSC, the information below would help you to arrive to the right certificate for your needs.


The DSC could only be used for Signing a document. (The most popular Certificate)

The most popular usage is signing the PDF file for Tax Returns, MCA and other websites.

Signing via DSC gives the assurance of not only the integrity of the signer but also the data. It is proof of untampered and unaltered data.


The DSC would be used to Encrypt a document, it is popularly used in tender portal, to help your company encrypt the documents and upload.

You could also use the certificate to encrypt and send classified information.

Encrypt DSC is fit for e-commerce documents, legal documentation and sharing documents that are highly confidential and contains information that needs to be protected

We are selling Encrypt certificate as a standalone product as well.

Sign & Encrypt

Our Sign & Encrypt DSC can be used for both signing and encrypting. It is convenient for users who need to authenticate and maintain the confidentiality of the information shared. Its usage includes filing government form and application.

You could buy certificates with a validity upto three years. (The validity is controlled by law, and you cannot buy certificates more than three years and less than One year validity).

The IT law allows us three Classes of DSC, however we only sell Class 3 and Class 3 certificates. We are not selling Class 1 Certificates. The difference between Class 3 and Class 3 is verification guidelines.

Class 3 Digital Signature Certificate

We offer Class 3 Digital Signature (DSC) to individuals and organizations DSC for both Indian and foreign applicant. The main function of this certificate is to authenticate the details of the signer. It re-affirms the already mentioned data of the user. It is used in various form-filling, online registration, email attestation, income tax filing and etc. More uses of Class 3 Digital Signature Certificates are given below.

  • MCA e-filing

  • Income Tax e-filing

  • LLP registration

  • GST application

  • IE code registration

  • Form 16,etc

Class 3 Digital Signature Certificate

We also offer class 3 digital signature certificate according to IVG guideline which is more secure in comparison to Class 3 certificate, This is the safest of all certificates. It is used in matters of high security and safety. It is mainly used in online trading and e-commerce, where a huge amount of money or highly confidential information is involved. If you opt for class 3 certificate, all applications which are created for Class 3, should be able to recognize your certificates. Following are the main functions of Class 3 certificates -

  • E-tendering

  • Patent and trademark e-filing

  • MCA e-filing

  • Customs e-filing

  • E-procurement

  • E-biding

  • E-auction,etc

There is no limitation on who could buy our certificates, people and organization from India and outside India can buy our certificates, provided they meet our Verification Guidelines. Please look at our list below to select an appropriate application form.


The DSC is for Indians, who do not want their organization name to be part of the certificate.


Ths DSC is for companies (any type of entity), who want their organization name to be part of DSC.

Foreign Individuals

The DSC is for foreigners and would like to use our certificate in their name.

Foreign Organization

The DSC is for Organizations registered outside India would like to use our Digital certificates.

Document Signer Certificate

If you intend to use our certificate for bulk signing of documents, you could use our Bulk Signer Certificates. We would offer this certificate in PFX file for Class 3 and is sold to Organizations only.

IET Certificates

We have a special Digital Signature certificate for IEC code holders, this certificate is specifically used for DGFT portal.

How DSC Works?

Signature word is not unknown to us. But we are not well aware about the details of Digital Signature. We insert our signature as a specimen for our identity. So that it cannot be forged by others. But the same is not possible in the digital world since the paper access is not provided to you for signatures. For the very same purpose we rely on digital signatures.

Digital Signature serves various purposes. It discloses the IP address from which your signature has been uploaded and specifies the particular file has come for which computer. Since the signature is encrypted it specifies the document for which it has been attached and auto checks if there has been any modification in the middle before receiving the digital signature. Your digital signature avails the facility of check sum through which you can check the authentication of the digital signature. For supposition when we hack a website and steal a file, and amend the information before sending it to the other then the file cannot be verified if its original or not or if any changes have been made. But in case of digital signature if there is any kind of amendment in the original file then through check sum one can verify if there has been any kind of modification in the file as a result your signature cannot be hacked and unethically used by hackers.
Apart from the above feature the digital signature comprises of two other specifications that is public key encryption and private key encryption. Suppose person 1 has a file which needs to be sent to person 2 in this case private key encryption comes in use. In this process when person 1 sends the file he shares the password of the file with person 2 so in case if person 3 gets the same file it will be of no use to him since he will not have the password for the file. Whereas for person 2 he will easily decode the file sent by person 1 and use it as per the requirement.

Now coming to public key. My computer will act as a public key as well as a private key since the files open for view to all will be easily accessible for anybody but in case I lock my file for my personal use that will work as a private key. In public key encryption my private file can be encrypted to receivers public file. In this way the receiver will know who has sent the file and he will be able to decode the file easily and risk of theft will be curtailed. Certificate authority authenticates the digital signature software. A duplicate for digital signature cannot be obtained so security of digital signature is very important so you should never handover your digital signature to any random person. As this signature of yours holds as an identity for you similar as debit card and your aadhar card.

To serve you better we deliver the READY TO USE certificates to your door-step. You can also write to us at or speak to us +91-9163363931, we will assist you and resolve all of your queries.