SunTV Network have launched their app for Windows phone
http://www.windowsphone.com/en-in/store/app/sun-tv-network/23bc33ea-67d8-496a-bea1-f6745e0c8056
http://www.windowsphone.com/en-in/store/app/sun-tv-network/23bc33ea-67d8-496a-bea1-f6745e0c8056