The Brahmasūtras is one of the three basic texts of Vedānta philosophy. In his scholarly commentary on the same—now known as the Śrībhāṣya—Rāmānuja (A. D. 1017-1137) refers to a few earlier commentators of his school of philosophy, one of whom is Ṭaṅka. Bodhāyana is said to have written a Vṛtti (detailed commentary) on the Brahmasūtras, which was further elucidated by others like Guhadeva, Ṭaṅka and Dramiḍa. Nothing more is known about any of them.