I am using a Realince Jio sim, it is india’s fast 4g sim which is all over the india. It is super first. The internet speed is very good. I have parches a Jio sim and I get 3month free 4g internet and voice call and video call also. If you buy a LYF mobile then you get 1 year free 4 internet, voice call and video call etc.!
What ever you want to do its full free.