I come to know that from this year December onwards TRAI is starting/implementing number portability in some circles. If number portability comes at a less cost and also allows the user to move to a different operator on some good plan then it will definitely change market scenario. Some of the top companies like Airtel, Reliance, Tata, etc. may see greater changes in their market share. Also it will give the user facility to move GSM to CDMA and vice-versa.

The consumer will be king and service providers are binded to provide more quality services as well as good scheme and tariff plans.
These companies are earning crores of rupees by manipulating rules & regulations. They charge extra, not providing timely services, etc.

Lets hope that situation will improve.