During the period between the 8th and 14th centuries, when Islamic rule and influence spread in various parts of India, Sanskrit texts and inscriptions frequently used terms like 'Turushka' (referring to Turks, especially Ghaznavids, Ghurids, and Delhi Sultans of Turkish origin), 'Tajika' (often referring to Arabs or people from Persian lands, including early Muslim rulers like the Rais of Sind or later groups), and 'Parashika' (specifically referring to Persians). These terms were used by Indian writers to identify and describe people of Muslim faith, often based on their ethnic or geographic origins.