Follow the steps
1) Make settings
Apn- airtelgprs.com or 3gfun.com
proxy- uc6.ucweb.com
homepage- live.airtelworld.com
Port-80
2) In uc handler app FrontQuery-
live.airtelworld.com/
airtel9/http/ (unblocked sim) or
airtelgurus.com/airtel9/http/
(blocked sim)
EnJøY