Hi,
Network is not good. Many times you need to dial 3-4 times to get a call. I am also traveling most of the time in west, south and north India and many times I have faced this. Many times call get drops.....
Their GPRS is one of the worse I have seen in my life (Specially on GSM services). Customer care is non responsive. and all are experts in making you fool.
GOD may help you, If you chose them.