(1) The Certifying Authority shall, by taking consideration into the explanation furnished by the subscriber under Sub-rule (2) of Rule 33, conduct necessary investigation into the matter as to whether or not the certificate has been
used in contravention of public interest.
(2) While conducting investigation pursuant to Sub-rule (1), if it  is not found that it has been done under Sub-rule (1) of Rule 33, the Certifying Authority shall have to release the suspension of such a certificate.
Provided that, in case the certificate is suspended as per the direction of Controller in accordance with Clause (c) of Sub-rule (1) of Rule 33, the certificate shall be released only after obtaining an approval of the Controller.