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Nils Jacob Liersch is a research assistant involved in the "Light on Haṭha" project at the University of London (SOAS), the University of Oxford and the University of Marburg. This project aims to produce a critical edition of the Haṭhapradīpikā between 2021 and 2024. In addition to his role in the project, he is currently pursuing a Ph.D. at the Institute for Indology and Tibetology at the University of Marburg under the supervision of Jürgen Hanneder.Liersch's Ph.D. research focuses on preparing a critical edition and annotated translation of Rāmacandra's Yogatattvabindu (possibly also called Tattvayogabindu), a yoga textbook from the 16th to 18th century that systematises fifteen different yogas. This particular text was likely compiled for a non-ascetic and courtly audience.