Alauddin Kalji introduced an innovative Chehra and Dagh System wherein the Chehra system involved the detailed description of each soldier and Dagh system involved branding of horses. Strict review of the army from time totime was carried out.
Shaikh Hasan was another prominent Sufi saint of the Suhrawardi order, who lived during the 16th and 17th centuries in Lahore in present-day Pakistan. Before joining the Suhrawardi order he lived in the ‘company of yogi Gorakhnath.