Khusrau Shah hatched a conspiracy against Mubarak Shah. Khusrau Khan was one of the favorite of Mubarak Shah. Khusrau Shah got him murdered in 1320 and himself ascended the throne.
Akbar remained illiterate and uneducated all his life. He had to occupy the throne at the early age of 13 years after the untimely death of his father Humayun.