Siddhantakaumudi (Siddhānta Kaumudī) is a book by Bhaṭṭoji Dīkṣita on Sanskrit grammar.
Bhattoji Dixit composed Siddhanta Kaumudi on the basis of Prakriyakaumudi.
[1][2] Bhattoji dikshita's disciple Varadarāja also became a great scholar of grammar.
In the ancient practice of studying Paṇiniyān grammar, the order of Paniniya sutrapath was considered as the basis.
As Western countries are being interested in Sanskrit, Siddhantakaumudi along with Astadhyayi and other books, are becoming widely researched.