TNEB Consumer Number and Service Numbers are printed or Written in your EB Card.
Find my TNEB Consumer No
You can find the the customer Number in the front page of your EB Card.
Section (3 Digit) : XXX
Distribution (3 Digit): XXX
Service Number (4 Digit): XXXX
Consumer Number (10 Digit) = Section (XXX) – Distribution (XXX)- Service Number (XXXX)
Refer the below Picture
First two digits are your Region Code (XX) – Next 10 Digits are your Customer Number (xxx-xxx-xxxx)
In some cases Service number can be 3 or 2 or 1 Digit.
In that case Consumer Number will be 9 digits (xxx-xxx-xxx) or 8 digits (xxx-xxx-xx) or even 7 digits (xxx-xxx-x)
If the number is written manually like ( 245-3-3328 ) then you should take 2450033328
In some cases 9 digit ( 072-101-331) Then consumer number is – 072101331
If only 7 digit is printed in the EB card (134-008-6) then consumer number is – 1340086
If you still find problem, you can verify your consume number in this web link