Complex sentence: They did much to undermine the power of the Mughal Emperors, since mughal power lost its support base from Rajputana and lack of strong successors to Aurangzeb, ultimately contributed to the fragmentation of the Mughal Empire.
Split into simpler sentences: They did much to undermine the power of the Mughal Emperors, since Mughal power lost its support base from Rajputana. The lack of strong successors to Aurangzeb ultimately contributed to the fragmentation of the Mughal Empire.