Section 4(2)(b) in The Petroleum and Natural Gas Regulatory Board (Affiliate Code of Conduct for Entities Engaged in Marketing of Natural Gas and Laying, Building, Operating or Expanding Natural Gas Pipeline) Regulations, 2008
(b)prevention of cross-subsidization of the costs between the regulated activity and any other non-regulated activity including the activity of marketing of natural gas either by the entity on its own or through its affiliate which adversely affects or has the potential of adversely affecting fair trade and competition between the entities;