A commentary on Sūryasiddhāntabhāṣya of Nṛsiṃha Deva (son of Kṛṣṇadaivajña of Golagrāma near Godāvarī) by Raṅganātha, son of Ballāla and Gogi. The text gives detailed calculations of time with Bengali numerics.
Gallica Portal, Bibliothèque nationale de France. Département des Manuscrits. Sanscrit 998