He is regarded as the "father of Qawwali" (a devotional music form of the Sufis in the Indian subcontinent), and introduced the ghazal style of song into India, both of which still exist widely in India and Pakistan.[3][4] He is also credited with introducing Persian, Arabic and Turkish elements into Indian classical music and was the originator of the khayal and tarana styles of music.
Khusrau was an expert in many styles of Persian poetry which were developed in medieval Persia, from Khāqānī's qasidas to Nizami's khamsa. He used 11 metrical schemes with 35 distinct divisions. He has written in many verse forms including ghazal, masnavi, qata, rubai, do-baiti and tarkib-band. His contribution to the development of the g͟hazal, is significant