Do consider reading this marvelously-written book about a 16th/17th century Sufi:
Sufis and Sufism: A Study of Hashimpeer of Bijapur (984/1056-1576-1646)
[Published by Idarah-I Adabiyat-I Delli, Delhi (email id: [email protected]). Year: 2014. Price: Rs. 300]
The author, late Sayed Afzal Peerzade, was Professor of Economics at Karnataka State Women’s University, Bijapur, and a prolific writer.