Section 15. Competent authority to have certain powers of civil court

15. Competent authority to have certain powers of civil court.— The competent authority shall have, for the purposes of this Act, all the powers of a civil court while trying a suit under the Code of Civil Procedure, 1908 (5 of 1908), in respect of the following matters, namely: — (a) summoning and enforcing the attendance of any person and examining him on oath; - (b) requiring the discovery and production of any document; - (c) reception of evidence on affidavits; - (d) requisitioning any public record from any court or office; - (e) issuing commission for examination of witnesses.