In my area there I used to get full 3G network in my room earlier but from sometimes I cant even gets it in outside.
Internet surfing is so terible you have to wait for somehow 5 minutes to open a simple web page in your smartphone.
Too bad network connectivity.
If you are talking with someone the call gets atometically cut after 55 or 1 hour and 30 minutes.
If you are calling its customer care number regarding this problem they always says its a technical glitch and they are working on it.