Hutchison Essar which has change now to vodafone and its great.I used it for many years it has very good network coverage at reasonable recharge price.It has works nice in internet it is fast it has the facility of 2G, 3G and now with 4G also which work great.
There customer care service is also very good they solve our problems but some time they don’t.They also give good offers to us and my experience is good with it.