A digital signature is an electronic signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and to ensure that the original content of the message or document that has been sent is unchanged. Digital Signatures provide a viable solution for creating legally enforceable electronic records, closing the gap in going fully paperless by completely eliminating the need to print documents for signing. The Single Window Portal supports the Digital signatures and encourages the certification authorities to use the Digital Signature for signing the final certificate/NOC/document.

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