Earlier I wrote good review of this product on this site but as time passes I come to know that this is very bad product, I have vodadone sim card and so I bought this sim card for cheaper rate but with my surprise the call rate per minute is higher then vodafone and you have to pay extraa to keep it cheaper.1 gb 3g price is 190 rs which is just 60 rs cheapers and thanks to its network you even cant use full 1 gb.forget the basement I dint get network even on the 4th floor at 90% of places including my college, my favourite restaurant mall and theatre.every month they come up with attractive offers but beware guyes dont go for this one.speed of the 3g is however better when netwok coverage is available.its ok if you have multiple sim card but if you are planning to buy 1st and last sim card then never ever go for it because it will frustrate you a lot.customer service need to improve they even dont ready to listen the complain about network coverage.this is really a genuine advice and this is one of my very few negetive reviews so believe me, dont go for it.