1.Mughal empire is one of the best empire.
2.They didn't followed that, the first son of a king should be the next king.
3.The well-stuffed person who can overcome all others, will be able to become a king. This is after the period of Akbar.
4.All the Mughal emperors are praised by the society, because the tax during their period is high, though the people was able to pay it happily. In such a way, the empire was.
Hope this will help you.