Ibn-ul-Asir says that Qutbuddin Aibak made “war against the provinces of Hind… He killed many, and returned home with prisoners and booty.” In Banara… - Qutb-ud-din Aibak

Ibn Asir only says that Qutbuddin Aibak made ‘war against the provinces of Hind… He killed many, and returned with prisoners and booty.” In Banaras, according to the same author, “the slaughter of the Hindus was immense, none was spared except women and children,”16 who would have been enslaved as per practice.

In the year A.D. 1202, when Qulb-ud-Din captured Kalinjar, after the temples had been convened into mosques, and the very name of idolatry was annihilated, fifty thousand men came under the collar of slavery and the plain became black as pitch with Hindus.

"Qutb-ud-Din, whose reputation for destroying temples was almost as great as that of Muhammad, in the latter part of the twelfth century and early years of the thirteenth, must have frequently resorted to force as an incentive to conversion. One instance may be noted: when he approached Koil (Aligarh) in A. D. 1194, ' those of the garrison who were wise and acute were converted to Islam, but the others were slain with the sword '.

The first of these bloody sultans, Kutb-d Din Aibak, was a normal specimen of his kind—fanatical, ferocious and merciless. His gifts, as the Mohammedan historian tells us, “were bestowed by hundreds of thousands, and his slaughters likewise were by hundreds of thousands.” In one victory of this warrior (who had been purchased as a slave), “fifty thousand men came under the collar of slavery, and the plain became black as pitch with Hindus.”