Muhammad Bakhtiyar sweeping the town with the broom of devastation, completely demolished it, and making anew the city of Lakhnauti… his metropolis, ruled over Bengal… and strove to put in practice the ordinances of the Muhammadan religion… and for a period ruling over Bengal he engaged in demolishing the temples and building mosques.
Turkic military general of Qutb al-Din Aibak
Ikhtiyār al-Dīn Muḥammad Bakhtiyār Khaljī also known as Malik Ghazi Ikhtiyar 'l-Din Muhammad Bakhtiyar Khalji or Muhammad Bakhtiyar Khalji or simply Bakhtiyar Khalji (died 1206), a military general of Qutb al-Din Aibak who conquered Bengal. His invasions are believed to have severely damaged the Buddhist establishments at Nalanda, Odantapuri, and Vikramashila.
From: Wikiquote (CC BY-SA 4.0)
From Wikidata (CC0)
The fame of his bravery and news of his plundering raids spread abroad, attracting to his standard a body of Khalji warriors then found hanging about all over Hindustan. His exploits were reported to Qutbuddin Aibak, who sent him a robe of honour and appointed him to invade Bihar as the Sultan’s general in 1202 C.E.15 Ikhtiyaruddin Bakhtiyar Khalji conquered extensively in Bihar and Bengal but then died unhonoured and unsung.
Mohammed Ghori had the Hindu temples of Ajmer demolished and ordered the construction of mosques and Quran schools on their ruins…He plundered Kanauj and Kashi and destroyed their temples... [While his generals] destroyed in passing the remaining Buddhist communities of Bihar and destroyed the universities of Nalanda.... Bakhtiar Khilji “established a Muslim capital in Lakhanauti (Gaur) on the Ganga and destroyed, in 1197, its basalt temples. In Odantpuri, in 1202, he massacred two thousand Buddhist monks....