Inquiry and investigation are quite distinguishable, as is clear from various provisions of the Act as well as the scheme framed thereunder. The Director General is expected to conduct an investigation only in terms of the directive of the Commission and thereafter, inquiry shall be deemed to have commenced, which continues with the submission of the report by the Director General, unlike the investigation under the MRTP Act, 1969, where the Director General can initiate investigation suo moto. Then the Commission has to consider such report as well as consider the objections and submissions made by other party. Till the time final order is passed by the Commission in accordance with law, the inquiry under this Act continues. Both these expressions cannot be treated as synonymous. They are distinct, different in expression and operate in different areas. Once the inquiry has begun, then alone the Commission is expected to exercise its powers vested under Section 33 of the Act. That is the stage when jurisdiction of the Commission can be invoked by a party for passing of an ex parte order. Even at that stage, the Commission is required to record a satisfaction that there has been contravention of the provisions mentioned under Section 33 and that such contravention has been committed, continues to be committed or is about to be committed. This satisfaction has to be understood differently from what is required while expressing a prima facie view in terms of Section 26(1) of the Act. The former is a definite expression of the satisfaction recorded by the Commission upon due application of mind while the latter is a tentative view at that stage. Prior to any direction, it could be a general examination or enquiry of the information/reference received by the Commission, but after passing the direction the inquiry is more definite in its scope and may be directed against a party. Once such satisfaction is recorded, the Commission is vested with the power and the informant is entitled to claim ex parte injunction. The legislature has intentionally used the words not only ex parte' but also without notice to such party'. Again for that purpose, it has to apply its mind, whether or not it is necessary to give such a notice. The intent of the rule is to grant ex parte injunction, but it is more desirable that upon passing an order, as contemplated under Section 33, it must give a short notice to the other side to appear and to file objections to the continuation or otherwise of such an order. Regulation 31(2) of the Regulations clearly mandates such a procedure. Wherever the Commission has passed interim order, it shall hear the