Here:
Bengal under Qutb-ud-din
Bakhtiyar appointed turks and khiljis to governorship of various parts of Bengal: Ali Mardan, Muhammad Shiran, Hisham-ud-din Iwaz etc. He established many mosques and madrasas, destroyed many temples and converted many Hindus to Islam. He finally died in 602 A.H. = 1205–6 A.D. after an unsuccessful attempt at conquering Tibet with the consent of the king of Kamrup and the help of Ali Mech of the Mech tribe who along with Koch and Tharu tribes formed his northern border. It is claimed that Ali Mardan, governor of Naran-Koi was responsible for his death.
link :
Muslim Conquest Of Bengal
Bakhtiyar and his troops burned and destroyed one of the oldest universities in the world,the famous Buddhist university at Nalanda (in modern Bihar State) in the year 1193. Here he committed documented executions and had the monks beheaded, and others burned.
He also brought Bengal’s ruler Lakshman Sen under his authority, and captured his capital in 1205. He is the founder of the Khilji dynasty and is considered to be the first Muslim ruler of Bengal.
Khalji came from the town of Garmsir in northern Afghanistan. Tradition has it that Khalji's conquest of Bengal at the head of 18 horsemen was foretold. It is held that he was of common birth, had long arms extending below his knees, a short physical stature and an unfavorable countenance. He was first appointed as the Dewan-i-ard at Ghor. But later he lost the job for irregularities in work. Then he approached India in about the year 1193 and tried to enter in the army of Qutb al-Din but failed. Then he went further eastward and took a job under Maklik Hizbar al-Din who was then the commander of the army of Badayun in northern India.
Link:
Ikhtiyar Uddin Muhammad bin Bakhtiyar Khilji - Wikipedia, the free encyclopedia