In the National Telecom Policy-2012, there are two provisions related to Number Portability as given here.
Para 13 Objectives:- Achieve One Nation – Full Mobile Number Portability and work towards One Nation – Free Roaming.
Para 3.13 of Strategies:- To extend Intra-circle mobile number portability facility on nationwide basis so that the users can retain their mobile number while shifting from one service area to another irrespective of the service provider.