The only You have to do is to Dial*325# from your mobile phone and follow the instructions.
First of all it asks for Facebook username and password,You have to enter these information via a number based command Prompt. After You getin.You will see a menu like
1.news feed
2.update status
3.post on wall.
4.friend request.
5.messages.
6.notifications.
*Account settings. You have to enter desired Numberin a number based command prompt for accessing your account. NOTE: *.This Service is only available in India.
This Service Currently available On selected operators like Airtel, Aircel,Idea,Vodafone and Tata Docomousers.