mention how sufism encouraged the growth of vernacular literature
Answers
literary works of high quality were produced in many regional languages. The Nath Panthi siddhas had used the “correct languages” (apabhramsha) as also local languages for their works in preference to Sanskrit. Amir Khusro, a disciple of Nizamuddin Auliya, had noted the existence of regional languages. He says that these languages have from ancient times applied in every way to the common purposes of life.
The rise to the maturity of many of these languages and their use as means for literary works may be considered a striking feature of the medieval India. With the loss of prestige by the brahmans, Sanskrit also lost some of its protégé. The use of the common language by the Bhakti saints was, undoubtedly, an important factor in the rise of these languages.
The Sufi and Bhakti saints played an important part in the evolution of the Urdu language. The Sufis realised that it was futile to preach Islam through persian, which was not understood by the Indian masses. So, these saints made use of large number of Hindavi words in their conversation with their disciples and common people.