Ashtadhyayi is an ancient
Sanskrit text and is credited to
Panani.
Ashtadhyayi has 3995 language rules. It has eight chapters and also covers other topics like, history, geography and sociology. Ashtadhyayi is still followed in the teaching of Sanskrit.
Ashtadyayi gives a list of all the root words of Sanskrit and describes the formation of words.