Section 4(2)(d) in The Bureau of Energy Efficiency (Manner and Intervals of Time for Conduct of Energy Audit) Regulations, 2010
(d)collect energy consumption, and production data for the equipment and processes covered within the scope of energy audit operating data, and schedule of operation, non-proprietary process flow charts, production level disaggregated by product, if applicable and such other historical data as may be considered essential by the accredited energy auditor for achieving the purpose of energy audit.