Vodafone is the best opetator.
it is especially gainful.
I am using vodafone from last 2 years, the best thing about vodafone is that it has best network connection in india like it true that they say where ever you go we follow
I am use this sim and data plan offers very super and I am tell my friend use this sim ans the friend is tell me super network and I am very happy net speed is very super speed to use all guys.
but there is no 3G 4G network coverage in my some areas
but best sim