Iitutmish , the Sultan of Delhi, was contemporary of Mongol leader Chengiz Khan. In 1221 A.D., there was a danger of expected attack of Chengiz khan on Delhi.
Qunum-i-Humayuni was written by Khwand Mir, also known as Ghiyasuddin Muhammad. It is an account of rules and ordinances established by emperor Humayun and of some building erected by him.