Minhaj-ud-din Abu Uraar bin Siraj-ud-din al-Juzjani, popularly known as Minhaj-us-Siraj was a medieval historian who was patronized by Slave Sultan Nasir-ud-din Mahmud to whom he dedicated his magnum opus Tabaqat-i-Nasiri.
Since Siraj held the high office of the Chief Qazi of Delhi to which he was appointed by Nasir-ud-din Mahmud, it is natural that Tabaqat-i-Nasiri gives a first hand account of the historical eventa from the conquest of Delhi by Muhammad of Ghur up to the year 1260 AD.
Siraj was temporarily removed from the post of Chief Qazi from 1253 to 1255 when. when a section of nobles induced the Sultan to send his prime minister Balban, into exile.
Tabaqat-i-Nasiri has been translated into English by Raverty.