Explanation:

He was also a great authority on astrology. In this context, he composed Pancha Siddhantika, about the five astronomical systems. Along with Aryabhatta, his contribution is considered seminal in Ancient India. His work Brihadsamhita is a great work in Sanskrit literature. It deals with a variety of subjects like astronomy, astrology, geography, architecture, weather, animals, marriage and omens. His Brihadjataka is considered to be a standard work on astrology