Free internet on airtel sim in unlimited

First you  any airtel sim 2g 3g 4g they work  on network.
1) first you download web tunnel apk 2) android device
Then open  webtunnel apk and username and password don't delete these are ingonore them header host (1.airtel.in/net) last then click (SSL) then on data and connect them then use unlimited but  do not disconnected because airtel are you blocked ok