Customer Indexing Scheme:
Customer indexing has to be carried out in a way, that makes it probable to associate the customer's geographical and electrical address along with his/her revenue address. Each customer, indexed on the basis of the initial record available with the owner and later verified by field survey, should have an exclusive six to eight digit numeric or alphanumeric code. A Consumer code number should be used for metering, billing & all other service functions.
For generating consumer indexing, every consumer is indexed based on the Electrical System Codification and the source of supply to the particular customer that should enable the feeder/DT wise energy accounting. Every customer is assigned a unique Customer Identification Number or CIN based on the source/pole/DT or Customer Number. You might like to know: How is the consumer code number assigned?
Figure: The Customer Indexing Scheme