Your post doesn't really make sense @SrinivasaraoD5894.
If you have a question or an issue and want assistance from the Community Forum then you need to explain it clearly.
What are you trying to do, what steps are you taking to do or, what goes wrong or doesn't work as expected, any error messages, etc.?
If you're wondering how to port your number from Tesco to 48 then see the instructions here:
If you need to contact 48 support about this then see the links in my signature below.
