Bhaṭṭoji Dīkṣita was the author of many important works on vyākaraṇa and other śastras. He led the navya-vaiyākaraṇa movement, his Siddhāntakaumudī and its panoply of commentaries becoming the standard and almost exclusive means of studying Pāṇini. He became a controversial figure in Vārāṇasī, where he worked, by criticising his teacher, especially in the Prauḍhamanoramā. He was in turn criticized by Jagannātha (fl. ca. 1620-1660), court paṇḍit to Shahjahan and other monarchs, in his Prauḍhamanoramākucamardana.