Due to his later fame, over 300 texts are attributed to him, including commentaries , introductory topical expositions and Stotra. However, most of these are likely to be written by admirers or pretenders or scholars with an eponymous name. Works known to be written by Shankara himself are the Brahmasutrabhasya, his commentaries on ten principal Upanishads, his commentary on the
Bhagavad Gita, and the Upadeśasāhasrī. The authenticity of Shankara being the author of Vivekacūḍāmaṇi has been questioned and mostly rejected by scholarship.