Qutb-ud-Din Aybak also is said to have destroyed nearly a thousand temples, and then raised mosques on their foundations. The same author states that… - Qutb-ud-din Aibak

Shahabud-din Ghori, king of Ghazni, sent his slave, Kutbu-d din, to make war against the provinces of Hind, and this general made an incursion in which he killed many, and returned home with prisoners and booty. The king of Benares was the greatest king in India, and possessed the largest territory, extending lengthwise from the borders of China to the province of Malawa (Malwa), and in breadth from the sea to within ten days’ journey to Lahore. When he was informed of this inroad, he collected his forces, and in the year 590 (1194 A.D.), he entered the territories of the Muhammadans, [p.108] Shahabu-d din Ghori marched forth to oppose him, and the two armies met on the river Jumna, which is a river about as large as the Tigris at Musal. The Hindu prince had seven hundred elephants, and his men were said to amount to a million. There were many nobles in his army. There were Mussulmans in that country since the days of Mahmud bin Subuktigin, who continued faithful to the law of Islam, and constant in prayer and good works. When the two armies met there was great carnage; the infidels were sustained by their numbers, the Musulmans by their courage, but in the end the infidels fled, and the faithful were victorious. The slaughter of the Hindus was immense; none were spared except women and children, and the carnage of the men went on until the earth was weary. Ninety elephants were captured, and of the rest some were killed, and some escaped. The Hindu king was slain, and no one would have recognized his corpse but for the fact of his teeth, which were weak at their roots, being fastened in with golden wire. After the flight of the Hindus Shabadu-d din entered Benares, and carried off its treasures upon fourteen hundred camels. He then returned to Ghazni. Among the elephants which were captured there was a white one. A person who saw it told me that when the elephants were brought before Shahabu-d din, and were ordered to salute, they all saluted except the white one. No one should be surprised at what I have said about the elephants, for they understand what is said to them. I myself saw one at Musal with his keeper, which did whatever his keeper told him.

Hasan Nizami writes that after the suppression of a Hindu revolt at Kol (Aligarh) in 1193 AD, Aibak raised “three bastions as high as heaven with their heads, and their carcases became food for beasts of prey. The tract was freed from idols and idol-worship and the foundations of infidelism were destroyed.” In 1194 AD Aibak destroyed 27 Hindu temples at Delhi and built the Quwwat-ul-Islãm mosque with their debris. According to Nizami, Aibak “adorned it with the stones and gold obtained from the temples which had been demolished by elephants”. In 1195 AD the Mher tribe of Ajmer rose in revolt, and the Chaulukyas of Gujarat came to their assistance. Aibak had to invite re-inforcements from Ghazni before he could meet the challenge. In 1196 AD he advanced against Anahilwar Patan, the capital of Gujarat. Nizami writes that after Raja Karan was defeated and forced to flee, “fifty thousand infidels were despatched to hell by the sword” and “more than twenty thousand slaves, and cattle beyond all calculation fell into the hands of the victors”. The city was sacked, its temples demolished, and its palaces plundered. On his return to Ajmer, Aibak destroyed the Sanskrit College of Visaladeva, and laid the foundations of a mosque which came to be known as ADhãî Din kã JhoMpaDã. Conquest of Kalinjar in 1202 AD was Aibak’s crowning achievement. Nizami concludes: “The temples were converted into mosques… Fifty thousand men came under the collar of slavery and the plain became black as pitch with Hindus.”

[Qutub-ud-din Aibak] was a typical specimen of the ferocious Central Asian warriors of the time, merciless and fanatical. His valour and profuse liberality to his comrades endeared him to the bloodthirsty historian of his age, who praises him as having been a ' beneficent and victorious monarch. …His gifts were bestowed by hundreds of thousands, and his slaughters likewise were by hundreds of thousands. All the leaders in the Muslim conquest of Hindostan similarly rejoice in committing wholesale massacres of Hindu idolaters, armed or unarmed.