What are the powers of the authorised officer in the course of audit?

During the course of audit, the authorized officer may require the registered person,
(i) to afford him the necessary facility to verify the books of account or other
documents as he may require
(ii) to furnish such information as he may require and render assistance for timely completion of the audit.

(ICAI FAQ PUBLICATIONS : -06-09-2017 AUDIT BY TAX AUTHORITIES : FAQ NO. 5)