Use this trick on 0 balance.
Use free internet on Airtel on facebook app. Use handler facebook app and use front query given below the post. for full instruction see this post
facebook app is best way to access facebook directly. and it have many other options and faster than opera mini.facebook app is developed own by facebook for faster and easier access on mobiles.

how to use free facebook app :
  • in front query put this query :

  • press save.
  • in few seconds your facebook app will be install on your mobile and use it free of cost.
  • but use this trick on 0 balance.
For free net on opera mini check here