Digital Signature Certificate is just an electronic format of physical signature and can be presented electronically to prove your identity, to access information or services on the Internet or to sign certain documents digitally. After electronic submission of forms to Ministry of Corporate Affairs, it has become mandatory to attest the electronic forms or documents by digitally certifying it with an individual's signature through DSC. It is essential for e-tenders and import export clearance. Furthermore, they are required for company filing and income tax returns. They are categorized in Class 1 Digital Signature, Class 2 Digital Signature and Class 3 Digital Signature.