(1) The entity laying, building, operating or expanding a pipeline for transportation of petroleum and petroleum products or laying, building, operating or expanding a city or local natural gas distribution network shall have right of first use for its own requirement and the remaining capacity shall be used amongst entities as the Board may, after issuing a declaration under section 20, determine having regard to the needs of fair competition in marketing and availability of petroleum and petroleum products throughout the country:
     Provided that in case of an entity engaged in both marketing of natural gas and laying, building, operating or expanding a pipeline for transportation of natural gas on common carrier or contract carrier basis, the Board shall require such entities to comply with the affiliate code of conduct as may be specified by regulations and may require such entity to separate the activities of marketing of natural gas and the transportation including ownership of the pipeline within such period as may be allowed by the Board and only within the said period, such entity shall have right of first use.
     (2) An entity other than an entity authorised to operate shall pay transportation rate for use of common carrier or contract carrier to the entity operating it as an authorised entity.
     (3) An entity authorised to lay, build, operate or expand a pipeline as common carrier or contract carrier or to lay, build, operate or expand a city or local natural gas distribution network shall be entitled to institute proceedings before the Board to prevent, or to recover damages for, the infringement of any right relating to authorisation.
     Explanation.--For the purposes of this sub-section, "infringement of any right" means doing of any act by any person which interferes with common carrier or contract carrier or causes prejudice to the authorised entity.