Who was responsible for the smooth functioning of the Mughal Mansabdari system?

In medieval India, why was the mansabdari system introduced?

Who of the following Mughal emperor was coronated twice?

The Mansabdari System introduced by Akbar was borrowed from the system followed in –

The foundation of the Mughal painting was laid by –

Which one among the following statements about the Mansabdari system is correct ?