I had earlier posted about cheap deals to calling India at 1.8 cents, but that deal had expired long back.
Here are the cheapest ways to call India and other Asian landline and mobile destinations.
SMSDiscount is currently offering at 4.8 US cents per minute to India
Tringme offers 3.99 US cents per minute.
Rebtel offers at 5.56 US cents per minute. They give free 10$ with first 10$ buy. So you pay 2.5 cents for first 10$. They also give 10mins free to test the quality. pretty impressive.
Betamax as we all know literally have over 20 odd Cheap VOIP Calls service clones and SMSDiscount is one of them. Primarily a cheap SMS service they also offer competitive cheap international calls to many countries including free international calls to some countries.