I started using uninor 5 months ago when I heard it was cheap.But I regret my decision.It has extremely poor coverage.I loose signals in public spaces and even when I am on calls.I also used it GPRS service which is for Rs 65 per month and is amongst the cheapest providers but it NEVER WORKS !!! Its Customer Care unit is unresponsive and dum.Since last 2 months I am try to port out my number to Vodafone but apparently due to some unknown/ uncrackable problem on Uninors part my port out request has been rejected 4 times.All they said to me was sorry and asked me to file the request again.I will have to thrash this SIM card and apply for a new one to Vodafone.