Physical documents are signed manually, similarly, electronic documents, for example e-forms are required to be signed digitally using a Digital Signature Certificate.A licensed Certifying Authority (CA) issues the digital signature. Certifying Authority (CA) means a person who has been granted a license to issue a digital signature certificate under Section 24 of the Indian IT-Act 2000.

The different types of Digital Signature Certificates are:

Class 2: Here, the identity of a person is verified against a trusted, pre-verified database.

Class 3: This is the highest level where the person needs to present himself or herself in front of a Registration Authority (RA) and prove his/ her identity. 

DSC of either Class 2 and Class 3 signing certificate category issued by a licensed Certifying Authority (CA) needs to be obtained for e-Filing on the MCA Portal. The Certifying Authorities are authorized to issue a Digital Signature Certificate with a validity of one or two years.

Digital Signatures are legally admissible in a Court of Law, as provided under the provisions of IT Act, 2000.