natya shastra the main source of indian classical dances was written by
Natya Shastra The Nāṭya Śāstra (Sanskrit: नाट्य शास्त्र, Nāṭyaśāstra) is a Sanskrit Hindu text on the performing arts.[1][2] The text is attributed to sage Bharata Muni, and its first complete compilation is dated to between 200 BCE and 200 CE,[3][4] but estimates vary between 500 BCE and 500 CE.[5]