Notations written as per Indian Classical Music system is called Sargam which is an acronym for Sa, Re, Ga, Ma. This page contains list of free SARGAM notations for hundreds of songs and tunes which can be played on instruments like, Flute, Harmonium, Harmonica/Mouth-organ, Violin, Guitar, Keyboard, etc.  You may, however, have to improvise a little bit to play them correctly on your instruments.  My advice however would be to not depend on anybody for notations. Write notations on your own. Yes, like me who has not taken any formal training in music, you can also do it. Click here to know how.