Why do you think Bakhtiyar Khalji's victory did not feel like loss for the local people of Bengal?
Answers
Because Ikhtiar uddin Muhammad bin Bakhtiyar Khilji of the Delhi Sultanate, defeated the Sena king Lakshman Sen at his capital, Nabadwip in 1203-1204 and conquered most of Bengal.
Khalji then returned to Devkot with about one hundred surviving soldiers. Upon Ikhtiyar Khalji's return while he was lying ill at Devkot, he was assassinated by Ali Mardan.
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.
Khilji was too proud of his Islamic culture and refused to get himself treated by a person outside his religion. But his health worsened and he was left with no other option but to invite Bhadra from Nalanda. ... He set fire to the great library of Nalanda and burned down nearly 9 million manuscripts