mughal empire died due to Aurangzeb, Rajput and Pashtuns. you see it was only Aurangzeb who alloted large numbers of pashtuns into mughal army and nobility before that mughals used rajputs to counter Afghan influenza (suri). but in shoort time due to his interference into Marvad succession at lest 30% of His army, Rajput re bailed togather and started a war on mughal empire. in pashtun area one mughal ooficer raped a pashtun girl and his tribe and fellow tribes started ther own rebellion, other 30% of mughal army , pashtuns also joined this rebellion and to countrt this king sent 40,000 strong mughal army but all massacred by Pashtun tribes. these 2 blunders and death of 40,000 elite strong men destroyed mughal army. bajro just attacked at the right time.