Use FACEBOOK  Free On Ur Mobile Without GPRS Connection  on Airtel
Airtel Customers
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What can You do with Airtel USSD-based Facebook service?

• Update Facebook status for free
• View / comment on / ‘Like’ news feeds, post on friends’ walls, confirm friend requests, view notifications, find and add friends – at Re 1 / day per use.

What is USSD ?

USSD (Unstructured Supplementary Service Data) is a menu-based system that enables interfacing with content based services. Instead of a browser, which requires an internet / GPRS connection), the USSD menu acts as browser to pull content to the phone. Airtel’s USSD solution is based on Fonetwish, developed by U2opia Mobile. USSD is somewhat faster than SMS because it  is a session-based communication, unlike SMS, which is transaction based.