Identify the language of Al-Biruni's book Kitab-ul-Hind:

Arabic

The correct answer is Option (3) → Arabic

Al-Biruni’s Kitab-ul-Hind, written in Arabic, is simple and lucid. It is a voluminous text, divided into 80 chapters on subjects such as religion and philosophy, festivals, astronomy, alchemy, manners and customs, social life, weights and measures, iconography, laws and metrology.