With mobile number portability, you retain the same number and change to the desired network. The procedure is very simple. In Step 5, it has been mentioned that you'll get porting date and time through SMS. However, in practice you might not get an SMS. Just wait for the network in previous SIM to go away and then insert the new SIM. Probably, it'll be activated (or wait for the network to appear). Complete the activation procedure if required - this might include calling customer care for tele-verification. MNP can now be done across any network across the country. The service provider for Zone-2 has made available online request tracking status. The Zone-2 includes the states of- Andhra Pradesh, Assam, Bihar (includes Jharkhand), Karnataka, Kerala, Kolkata, MP (includes Chhattisgarh), North East (includes Arunachal Pradesh / Manipur/ Meghalaya / Mizoram / Nagaland / Tripura), Orissa, West Bengal, Tamil Nadu including Chennai. MNP Servic...