for the purpose of performing its functions under this Act, the Commission shall have the same powers as are vested in 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;
         (b) requiring discovery and production of any documents;
         (c) receiving evidence on affidavits;
         (d) requisitioning any public record or copies thereof from any office;
         (e) any other matter which may be prescribed by rules.