The competent authority and the Appellate Tribunal shall have 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 documents;
         (c) receiving evidence or affidavits;
         (d) requisitioning any public record or copy thereof from any court or office;
         (e) issuing commissions for examination of witnesses or documents;
         (f) any other matter which may be prescribed.