Mobile Number portability is going to be implemented Pan India from 20th Jan 2011. Mobile Number Portability (MNP) is a facility that helps you retain your mobile number even when you change the mobile service provider within the same circle.Using mobile number portability it is possible to switch even from CDMA to GSM while retaining the same number.However you will require a new handset for GSM service.You can switch from GSM to GSM also.You can switch from Postpaid to Prepaid but you should have paid all outstanding (billed and unbilled) before sending the porting request.
1. SMS PORT<space><your 10 digit mobile number> to 1900 and get your UPC code
2. Fill up an Application form at the nearest retailer selling the SIM of your required new service provider. Just make sure it has
a.) Your UPC code
b.) A Copy of your valid Address and Identity proof
c.) Passport size photo
3.Get your new SIM card.
New operator will send an SMS on your old/existing operator’s SIM (existing connection) intimating about the porting date and time, i.e. the date and approximate time till when you can continue to use your existing operator’s SIM card.There will be a 2-hour ‘no service period’ which will begin after the porting time as given above. The ‘no service period’ will be between 12 midnight to 5 am during which your mobile service will not be active on any SIM. All efforts will be made to ensure that this ‘no service period’ causes minimum inconvenience to you.After the ‘no service period’, you can replace your existing operator’s SIM card with the new SIM card in your handset.Note that with MNP, your previous balance, validity, Value added services (if any) or any other benefits will not be carried forward.You can even cancel your porting request.You may do so by submitting a written cancellation request at the new operator store within 24 hours of making the porting request.The charge is,besides the SUK cost (the cost of the SIM card), a porting fee of Rs. 19 is applicable (non refundable).