ha ▁in ▁present - day ▁U tt ar ▁Pr adesh . ▁ ▁Background ▁▁ ▁The ▁Mong ol ▁Ch ag ata i ▁Khan ate ▁had ▁inv aded ▁the ▁Del hi ▁Sultan ate ▁a ▁number ▁of ▁times ▁in ▁the ▁ 1 3 th ▁century . ▁After ▁A la ud din ▁K hal ji ▁asc ended ▁the ▁throne ▁of ▁Del hi , ▁four ▁such ▁invas ions ▁had ▁been ▁rep uls ed ▁in ▁ 1 2 9 7 - 9 8 , ▁ 1 2 9 8 - 9 9 , ▁ 1 2 9 9 , ▁and ▁ 1 3 0 3 . ▁During ▁the ▁ 1 3 0 3 ▁invasion , ▁the ▁Mong ols ▁managed ▁to ▁enter ▁A la ud din ' s ▁capital ▁Del hi , ▁which ▁prompt ed ▁him ▁to ▁take ▁a ▁series ▁of ▁steps ▁to ▁prevent ▁further ▁Mong ol ▁invas ions . ▁A la ud din ▁started ▁res iding ▁in ▁the ▁newly - construct ed ▁Si ri ▁Fort , ▁rep a ired ▁and ▁built ▁several ▁front ier ▁for ts , ▁and ▁appointed ▁powerful ▁command ers ▁in ▁the ▁front ier ▁regions . ▁ ▁Mong ol ▁march ▁to ▁India ▁▁ ▁Despite ▁A la ud din ' s ▁measures , ▁a ▁Mong ol ▁force ▁led ▁by ▁Ali ▁Beg ▁inv aded ▁the ▁Del hi ▁Sultan ate ▁in ▁ 1 3 0 5 . ▁The ▁Del hi ▁chron ic ler ▁Z ia ud din ▁Bar ani ▁describes ▁Ali ▁Beg ▁as ▁a ▁desc endant ▁of ▁G eng his ▁Khan , ▁but ▁Ali ▁Beg ▁actually ▁belonged ▁to ▁the ▁Kh