Hello AirtelTrickianz!
Do You Want use Unlimited VPN trick now I share this exclusive trick for extends your limit unlimited for Droid & Troid VPN'S

Let's start

Firstly you need these 2 apps for using this trick
1. Xposed Installer
2. Donkey Guard

Now open Xposed Installer And click "Module"
Now Tick "Donkey Guard"

Now open donkey guard and search your VPN app settings and change android id/device id

Now open your settings and select apps
Now clear VPN app data,

Droid VPN will refresh now
Open it and log-in with another account
and use unlimited data...!
Enjoy............!!!