ARTICLE The Authorship of the Sanatsujātīya- and Viṣṇusahasranāma-Bhāṣya Attributed to Śaṅkara Ivan Andrijanić Accepted: 29 July 2025 © The Author(s), under exclusive licence to Springer Nature B.V. 2025 Abstract The Sanatsujātīya- and Viṣṇusahasranāma-Bhāṣya are traditionally attrib- uted to S ´ an˙kara. However, a recent computational stylometric study conducted by Ivan Andrijanic´ and Jacek Ba˛kowski using the General Imposters authorship verifi- cation method challenges the traditional authorship attribution to S ´ an˙kara. In this paper, the authorship of these two works are re-examined from a more traditional perspective. The analysis of doctrinal and terminological peculiarities reveals the presence of later Veda¯ntic concepts and citation practices unusual for S ´ an˙kara. Moreover, in both commentaries, there is a quotation of two verses from the Bhṛgu- Saṃhitā, which could be dated to the twelfth century, serving as a key argument against S ´ an˙kara’s authorship. On the other hand, the General Imposters algorithm detected significant similarities between both texts, suggesting that they share a common authorship. Notably, the commentary on the Śvetāśvataropaniṣad, a text that includes the same two quotations from the Bhṛgu-Saṃhitā, is also attributed, through the General Imposters method, to the same author responsible for the commentaries on the Sanatsujātīya and Viṣṇusahasranāma. Hence, the second, and most crucial, part of this paper will analyse these three texts, unveiling striking correspondences among them and proposing the possibility that a single author crafted all three. Furthermore, thanks to the critical apparatus of the Mahābhārata, the Sanatsujātīya-Bhāṣya can even be geographically located in the southwest of India, which suggests a place of origin for all three Bhāṣyas, assuming they do indeed share authorship. Keywords authorship verification · General Imposters · Advaita Veda¯nta · S ´ an˙kara & Ivan Andrijanic´ iandrij@m.ffzg.hr Department of Asian Studies, Faculty of Humanities and Social Sciences, University of Zagreb, Ivana Lucˇic´a 3, 10000 Zagreb, Croatia 123 International Journal of Hindu Studies https://doi.org/10.1007/s11407-025-09405-9