How to port to Another network without changing existing number
How To Port Your Mobile Number To Another Network Operator
Just SMS by writing PORT Mobile number to 1900.
It will cost you 1 rs or depend on your tariff plan. For example PORT 999123456
You will receive a Unique Port Code (UPC). It will valid for 15 days so don’t delete it.
Now locate Your New Network Operator store near your area.
You can also use Your New Network Operator store locator to find the closest Your New Network Operator store.
After you found the Your New Network Operator store just go there with 1 photo and valid identity proof.
They will give you the form and help you to fill it up. You will also write your Unique Port Code in this form.
So after submitting the form they will give you the Your New Sim with the same number.
But it will take 1 week to complete this process.
In this period of time you can use your current network but after 1 week you will get disconnected from the current network.
Then you can just insert your new Sim and enjoy Your New Network Operator plans.