Dear friends
Today vodafone is only a network that perform as good service
its network connection is too good and network coverage are also good it have low call drop problem faced by me with respect to other cellular network .
call rate is half of per second plan are also available in vodafone
its network are too strong so the internet uses speed of any 2g 3g are good performance with respect to other network.so I suggest to use vodafone sim card.