We suggest you to approach you area manager first, give him a written complaint and don't forget to take receiving from them.
Note: Before approaching CMD, first you have to register your complaint with the customer care then approach your area manager then your area nodal office and then approach CMD. This is the proper channel that helps you if you need to knock the consumer forum.
The following judgment may help you:
The complainant deposited Rs. 1000/- for getting telephone connection allotted to her, The complainant is a "Consumer"-- It is immaterial if the telephone connection is granted or not -- Mere by deposit of fee for allotment of telephone, the depositor become "Consumer"
[Santosh Gaur V. Chief General Manager, Telecommunication, 2004 (III) CPJ 19: 2004 (2) CLT 671 (Raj)]