Section 4(1)(vi) in The Energy Conservation (Energy Consumption Norms and Standards for Designated Consumers, Form, Time within which, and Manner of Preparation and Implementation of Scheme, Procedure for issue or purchase of Energy Saving Certificate and Value of Per Metric Tonne of Oil Equivalent of Energy Consumed) Rules, 2012
(vi)where more than one product is produced, select the main product produced or an equivalent product worked out from the product mix as per standard practice prevalent in the concerned designated consumers sector: