Telugu
http://www.telugulyrics.org/Tracks.aspx?Type=Movie
http://meragana.com/default.aspx?cat=Telugu
https://www.youtube.com/user/telugukaraokemusic
http://meragana.com/
Hindi
http://www.ecstaseakaraokemusic.com/
http://www.downloadkaraokemusics.com/
http://desikaraokedownload.com/
Software's(for Offline)
http://www.techwebstuff.com/top-7-karaoke-software-player-for-windows-pc/