I had used reliance GSM for around 2 years and my exprience was very bad.
The signal is very low, lot of the time I was not getting the signal.
And also after 2-3 days there is reduce in the balance, and when ask the customer care they did not reply properly.
They said that now onwards this will not happen, but even there after there is reduce in the balance.
Every time getting message that this service is active and it will cost you.