I have used Reliance mobile operator for about six months and I had a very bad experience with it.
Signals of Reliance operator goes again and again and sometime do not come for one to two hours which is the worst reason for not liking it.
Moreover Reliance 3G net also do not work properly and gives a very slow speed which delay each and every work on internet.Sometimes it shows the signals of internet but in real internet doesn't work.So I had a very bad experience and I will adive to first take a check of it before buying it.