20. Audit of accounts. - Where any person who has been granted a certificate or given prior permission, fails to furnish any intimation under this Act within the time specified therefor or the intimation so furnished is not in accordance with law or if, after inspection of such intimation, the Central Government has any reasonable cause to believe that any provision of this Act has been, or is being, contravened, the Central Government may, by general or special order, authorise such gazetted officer, holding a Group A post under the Central Government or any other officer or authority or organisation, as it may think fit, to audit any books of account kept or maintained by such person and thereupon every such officer shall have the right to enter in or upon any premises at any reasonable hour, before sunset and after sunrise, for the purpose of auditing the said books of account:

Provided that any information obtained from such audit shall be kept confidential and shall not be disclosed except for the purposes of this Act.