Evaluate the evaluate the reasons for the decline of Mughal Empire
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Foreign Invasion. A series of foreign invasions affected Mughal Empire very badly. Attacks by Nadir Shah and Ahmad Shah Abdali, which were themselves the consequences of the weakness of the Empire, drained the Empire of its wealth, ruined its trade and industry in the North, and almost destroyed its military power.

To be honest i thinks its between the first answer and the third answer