Question

why did aurangzeb fail

Answer 1

The main cause of Aurangzeb's failure in the Deccan is to be found in the contrast between the characters of the Mughals and the Marathas, If the Mughals had been the same hardy warriors that Babur led from the valleys of the Hindukush or if the Rajputs had supported them with all their might, the Marathas would have been allowed a short shrift.

Answer 2

The main reason of Aurangzeb's failure in the Deccan is to be found in the contrast between the characters of the Mughals and the Marathas