बिहार को दिल्ली सल्तनत के अधीन करने वाला प्रथम सुल्तान था – - The first sultan to subjugate Bihar under the Delhi Sultanate was- - Bihar Ko Delhi Saltnat Ke Adheen Karne Wala Pratham Sultan Tha - Bihar Gk in hindi, Bihar Medieval History Quiz Aramsaah question answers in hindi pdf Iltutmish questions in hindi, Know About Kutubuddin Aibak Bihar Gk online test Bihar Gk notes in hindi quiz book Inme Se Koi Nahi