Solution:Kitab-al-Hind was written by Al-Biruni, it accounts for his observations on Indian conditions, system of knowledge, social norms and religion of India.
Rehla or Rihla (meaning Journey) is an account of journey made by Ibn Battuta, it is only source of Ibn Battuta’s adventures.
Humayun Nama, the account of life of Humayun was written by his half-sister Gulbadan Begum.
Badshah Nama or Padshahnama was written by traveller/historian Abdul Hamid Lahori during the reign of Shah Jahan.