Basically after Ghori died his empire was divided up .
Ghori died in 1206 .His son Ghiyas-udin succeded him at Ghur .
Yaldoz his general took Ghazni and upper Sindh .
Nasiruddin Quabacha took Multan and Lower Sindh .
Ali Mardan Khan or Khalji took over Bengal and Bihar .
Lastly Qutbuddin Aibak created the Delhi sultanate in India .His successor Iltutmish later conquered almost all the others .Except for Khalji who was nominally a servant of the Delhi sultanate but was almost independant after Iltutmish .Later a descandent of the Khaljis would take over the Delhi sultanate and unify almost all of north India,expand into the south and make the Delhi sultanate the strongest empire in India and among the top 10 empires of the world at that time .