"A free-lance adventurer, Muhammad Bakhtyar Khalji, was moving further east. In 1200 AD he sacked the undefended university town of Odantpuri in Bihar and massacred the Buddhist monks in the monasteries. In 1202 AD he took Nadiya by surprise. Badauni records in his Muntakhab-ut-Tawarikh that “property and booty beyond computation fell into the hands of the Muslims and Muhammad Bakhtyar having destroyed the places of worship and idol temples of the infidels founded mosques and Khanqahs”."

““And in the year AH 698 he appointed Ulugh Khan to the command of a powerful army, to proceed into the country of Gujarat… Ulugh Khan carried off an idol from Nahrwala… and took it to Dihli where he caused it to be trampled under foot by the populace; then he pursued Rai Karan as far as Somnat, and a second time laid waste the idol temple of Somnat, and building a mosque there retraced his steps.”

““…At the time of his return he restored the fort of Dholpur also to Binayik Deo, and having spent the rainy season in Agra after the rising of the Canopus in the year AH 910 , marched to reduce the fortress of Mandrayal, which lie took without fighting from the Rajah of Mandrayal, who sued for peace; he also destroyed all the idol-temples and churches of the place…”

““And in the year AH 912 , after the rising of the Canopus, he marched against the fortress of ÛntgaRh and laid siege to it, and many of his men joyfully embraced martyrdom, after that he took the fort and gave the infidels as food to the sword… He then cast down the idol-temples, and built there lofty mosques.”

““…The temple of Nagarkot, which is outside the city, was taken at the very outset… On this occasion many mountaineers became food for the flashing sword. And that golden umbrella, which was erected on the top of the cupola of the temple, they riddled with arrows… And black cows, to the number of 200, to which they pay boundless respect, and actually worship, and present to the temple, which they look upon as an asylum, and let loose there, were killed by the Musulmans. And, while arrows and bullets were continually falling like drops of rain, through their zeal and excessive hatred of idolatry they filled their shoes full of blood and threw it on the doors and walls of the temple… the army of Husain Quli Khan was suffering great hardships. For these reasons he concluded a treaty with them… and having put all things straight he built the cupola of a lofty mosque over the gateway of Rajah Jai Chand.”186”

“Muslim power in India suffered a serious setback after Iltutmish. Balban had to battle against a revival of Hindu power. The Katehar Rajputs of what came to be known as Rohilkhand in later history, had so far refused to submit to Islamic imperialism. Balban led an expedition across the Ganges in 1254 AD. According to Badauni, “In two days after leaving Delhi, he arrived in the midst of the territory of Katihar and put to death every male, even those of eight years of age, and bound the women.” But in spite of such wanton cruelty, Muslim power continued to decline till the Khaljis revived it after 1290 AD.”

““In this year also Sulaiman Kirrani, ruler of Bengal, who gave himself the tide of Hazrati A’la, and had conquered die city of Katak-u-Banaras, that mine of heathenism, and having made the stronghold of Jagannath into the home of Islam, held sway from Kamru to Orissa, attained the mercy of God…”