Obviously we can shift your mobile number to other network .This is called mobile number portability (MNP). This rule is made as a rule in Indian by telecom Network Authority named TRAI.
Procedure to change your exiting mobile number to other network :
- Send an sms PORT <your mobile number) to 1900
- You will receive an Unique Porting Code (UPC). This code is valid for 15 days.
- Visit the nearest showroom of your new mobile network that you wish to change.
- They will register your details using bio-metric scanner and give you the new sim. It may cost you upto 100 Rs, it ll credited as talktime.
- Within Seven days your number will be converted in to new network and you can enjoy the benefits of the new network with the same number. You will receive a confirmation sms once your mobile number gets ported.