Bing Rewards was available only in United states only. Now Microsoft is rolling out it for other countries too. Now if you are from India you can register for Bing Rewards.
What is Bing rewards ?
Bing will give you credit points every time you do a new search on Bing (Make sure you logged in with your Microsoft account before you do a search), which can be used to purchase things online. As of now you can see that you can recharge your mobile phone with the Bing credit points using the freecharge.
When you login for the program you will be getting 10 bonus points. Each day you will get 10 bonus points if you access Bing and each new search will provide you a credit point. So if you search a lot this can earn you enough to recharge your phone.
You need 90 points to recharge your mobile for INR 30.
This is my first search after logged in India Pakistan match live
which gave me one credit point.
Bing predicts predicts the match will be in favor of India 57% and only 43% for Pakistan.
Time to search on Bing and earn some talk time 
Here is the link
Thank you Ashwin.