What were the weaknesses of the Mughal army which led to the decline of the Mughal Empire?

The weaknesses of the Mughal army which led to the decline of the Mughal Empire were:

1. The Mughal army was organised more or less on the feudal lines, where the common soldier owed allegiance to the mansabdar rather than to the emperor.
2. The soldiers cared more for their personal comforts and less on winning battles.
3. Mansabdars did not maintained the number of troops they were required to, according to their rank. This affected the military strength of the empire.
4. In 18th century, soldiers were hired from Central Asia who were not loyal to Mughal Empire.