Skype offer for India user to call on mobile and landline in US and Canada till 1st of March, 2015. You simply login on your Skype account and dial then number as you would normally do from your phone dialer.
All you need is a free Skype account and an Internet connection. And if you have some credit in your Skype account, no charge will be made till the offer period. This offer excludes special, premium service and non-geographic numbers.
Download Skype for your devices: Official Site