Khusrau made lasting contributions to Indian classical music and qawwali, and is also credited for developing Hindavi, a precursor to modern Hindi and Urdu. https://indianexpress.com/article/explained/explained-history/prime-minister-modi-attends-jashn-e-khusrau-how-13th-century-poet-is-a-flag-bearer-of-pluralistic-sufi-tradition-9862123/?ref=expin