India History Delhi saltnat Ka Pehla sultan Kaun Tha Jisne Doaab Ke Aarthik Mahatva Ko Samjha ?

दिल्ली सल्तनत का पहला सुल्तान कौन था जिसने दोआब के आर्थिक महत्व को समझा ? - Who was the first Sultan of Delhi Sultanate who understood the economic importance of Doab? - Delhi saltnat Ka Pehla sultan Kaun Tha Jisne Doaab Ke Aarthik Mahatva Ko Samjha ? India History in hindi,   Iltutmish question answers in hindi pdf  Alauddin Khilji questions in hindi, Know About Kutubuddin aibak India History online test India History notes in hindi quiz book    Muhammad - Bin - Tugalak