So lets Discuss the trick its very simple all you have to top is follopw the simple steps and try this trick at very low balance beacause it may can harm your balance if it fails to work or if you did any mistake in the procedure so the trick is
Airtel free facebook for 8 months, you can easily Update your status or Upload your photos and much more for free upto October. Facebook will send you their Special Facebook app which is specially design to use only facebook no other sites will be open. If you open facebook on any other browser or Opera mini then this will charge you 10paise/10KB.
How to Activate Free Facebook for 8 Months
To Activate Send SMS "Facebook" to 54321 and Enjoy free Facebook for 8 Months (Upto Octomber 2012).
Now they will send you Download Link of Facebook App, Click on that Link and Download Facebook App.