Digital Signature Certificates are electronic format of physical signatures. DSC can be presented electronically to access information or services on the Internet, to prove the identity or to sign certain documents digitally.
W.e.f. 16th September 2006 all the documents required to be filed with ROC have to be filed on portal of Ministry of Corporate Affairs at www.mca.gov.in using Digital Signature Certificate.
A licensed Certifying Authority (CA) issues the digital signature. Various certifying authorities licensed by MCA include TCS, SIFY and MTNL etc.
It is not necessary that person should first have DIN number as a pre-requisite to apply for DSC. DSC can be obtained without DIN. But both DSC and DIN are required for filing any documents on portal of MCA.
The Certifying Authorities are authorized to issue a Digital Signature Certificate with validity or one or two years.
Digital Signatures have legal validity and are admitted in Court of Law for various purposes.