A step towards the reconstruction of the text of the Nāṭyaśāstra of Bharata

The variants available in the text of Nāṭyaśāstra in different recensions are due to the base mss collected from different parts of India and abroad, scribed in different periods. There is not even a single edition of Nāṭyaśāstra, that can claim to be the primary one. So a critical and thorough observation with a comparative study can make it possible to reach the primary text of Nāṭyaśāstra. Following points should be adhered to find out the an authentic text, as such ; 1. The available mss and their chronological history and geographical origin. 2. Comparison of the text with the commentaries of Abhinavagupta. 3. The Content and order of the text. 4. The language and style of the text. 5. The reference and citations of Nāṭyaśāstra in other texts of dramaturgy and treatises of poetries and dramas. 6. The reference and citations other texts of dramaturgy and allied treatises in Nāṭyaśāstra.