²[73A.  In order to ascertain whether a digital signature is that of the person by whom it purports to have been affixed, the Court may direct-

(a) that person or the Controller or the Certifying Authority to produce the Digital Signature Certificate;

(b) any other person to apply the public key listed in the Digital Signature Certificate and verify the digital signature purported to have been affixed by that person.

Explanation.- For the purpose of this section, "Controller" means the Controller appointed under sub-section (1) of section 18 of the Information and Communication Technology Act, 2006 (Act No. 39 of 2006).]