FB.init(“4404d496a6312bccfbae5f70c1795712″); So, Airtel has always been ahead of all the competitors when it comes to thinking of exclusivity. Once again, Airtel has come up with an Twitter from SMS. Just SMS ‘Signup’ to 53000. SO, if you are with Airtel, and love to tweet everything single thing about you, then this service is for you.