Al Biruni was made court astrologer in Ghazni and he accompanied with Mahmud on his invasions on India. He lived for several years here and is considered to be first Indologist.
Under the rule of the Vijayanagar empire, irrigation became prominent. The development of irrigation took place mainly during the rule of Deva Raya I. New tanks were built and dams were constructed across the river Tungabhadra.
Abul Fazl who was one of the courtiers who were collectively known as Akbar’s Navratnas (or nine jewels). He wrote Ain-i-Akbari and Akbar Nama. He Lead the Mughal imperial army in its wars in Deccan but was murdered by Bir Singh Bundela.