MNP or Mobile Number Portability is the best solution for consumers for changing just mobile network without changing the current mobile number.
1. To port your existing mobile number: SMS PORT <10-digit mobile number> to 1900 from current mobile number.
2. You will get UPC code with expiry date and time. (unique code is valid for 15 days only).
3.Walk in to nearest Store with the UPC (Unique porting code).
4.Carry your original Aadhaar card, Proof of Address(POA) / Proof of Identity(POI) documents and photo copies.
5.You can track real time status of your order on the app.
6.As per TRAI guidelines, it will take 48 hours for number to get ported.