What is "chhandayan"

Chhandayan, Inc. (Chhandayan) is a nonprofit 501(c)(3) charitable organization focused on the preservation and advancement of Indian classical music. Chhandayan was founded in 1984 by Samir Chatterjee, the current Artistic Director and President. Its activities span various areas of music education which include organizing concerts and pre-concert lectures, classes (theory and performance), workshops, and archival research. Chhandayan’s primary operations are based out of its New York City headquarters, the Chhandayan Center for Indian Music (CCIM), but its activities are carried out in six local chapters.