Does digital signature involve only in online transaction?

Answer 1

No. Digital signatures are a cryptographic concept for information authentication. It is true that it is most useful in on-line transactions, but it can be used in various other situations too - for instance, to digitally sign a file, in order to prove authorship, in a timestamping service, and so on.

Answer 2

digital signature is used to sign the return filed on-line. you may persist with for digital signature. ITR -one million is used for submitting return by utilising guy or woman/HUF/AOP or BOI which donot have business enterprise earnings. ITR-5 is utilized by utilising companies.