(1) A Certifying Authority may revoke a Digital Signature       Certificate      issued by it -
     (a) where the subscriber or any other person authorised by             him  makes a request to that effect; or
     (b) upon the death of the subscriber; or
     (c) upon the dissolution of the firm or winding up of the             company   where the subscriber is a firm or a company.

(2) Subject to the provisions of sub-section (3) and without         prejudice  to the provisions of sub-section (1), a Certifying         Authority may    revoke a Digital Signature Certificate which         has been issued by it      at any time, if it is of opinion that -
      (a)  a material fact represented in the Digital Signature               Certificate   is false or has been concealed;
      (b)  a requirement for issuance of the Digital Signature               Certificate   was not satisfied;
      (c)  the Certifying Authority's private key or security system               was  compromised in a manner materially affecting the               Digital  Signature Certificate's reliability;
      (d) the subscriber has been declared insolvent or dead or               where a  subscriber is a firm or a company, has been               dissolved,  wound-up or otherwise ceased to exist

(3) A Digital Signature Certificate shall not be revoked unless the      subscriber has been given an opportunity of being heard in the      matter.

(4) On revocation of a Digital Signature Certificate under this         section,  the Certifying Authority shall communicate the         same to the  subscriber.