Section 25(b) in The Orissa State Electricity Board (General Conditions of Supply) Regulations, 1995
(b)In cases, where for any reason whatsoever, monthly average power factor of the load cannot be ascertained from the readings of meters/metering equipments installed for registering the consumers' monthly consumption of energy and/or 'maximum demand' in his installations/plant, it shall be determined periodically by the Engineer under normal operating conditions of the consumer by installing necessary equipments in the consumer's premises and the power factor so determined shall be considered as the average power factor of the consumer's installations/load for all purposes till such time, it is re-determined on the basis of any altered operating conditions.
