Facilitation of cheap calls in India started with the emergence of new telecom operators over time. Gone were the days when there were counted few calling cards providers. Today, there are numerous of them; you only get spoilt for choices. Obviously you will opt for calling cards that come with a whole lot of benefits such as validity, free phone call, cheap call rates, and more. Free phone call facility is provided in various local and STD packs.
For example, if you go for the Rs. 5 local pack, you can enjoy 100 minutes of free phone call from Uninor to Uninor at night. There is another Rs. 5 pack, offering free phone call of 50 minutes. While the first is valid between 10 pm to 7 am, the second is valid till midnight for a day. No wonder cheap calls India are greatly facilitated by Uninor calling cards!