Varahamihira, a renowned astronomer and mathematician, is widely recognized for his contributions to the field of astrology, including the development of the zodiac.

The Surya Siddhanta, an influential astronomical treatise, is believed to have had a significant impact on the development of Chinese astronomy, particularly during the Tang Dynasty.

Aryabhata, a brilliant mathematician and astronomer, is credited with proposing a heliocentric model of the solar system, where the Earth and other planets revolve around the Sun.

Brahmagupta, a renowned mathematician and astronomer, is recognized for his discovery of the precession of the equinoxes, a phenomenon where the Earth's axis slowly shifts over time.

The Brihat Samhita, an encyclopedic work by Varahamihira, includes extensive descriptions of astronomical instruments, such as the astrolabe and the gnomon, and their applications in astronomy.

Bhaskara II employed trigonometry, a branch of mathematics dealing with angles and triangles, to accurately calculate the circumference of the Earth.

The Surya Siddhanta, a significant astronomical treatise, is renowned for its precise predictions of eclipses and the positions of planets, demonstrating the advanced astronomical knowledge of ancient India.

Varahamihira is recognized for his contributions to the development of the astrolabe, an instrument used for measuring the altitude of celestial bodies and determining their positions in the sky.

Aryabhata, a pioneering astronomer, proposed the concept of the Earth's rotation on its axis, a significant contribution to the understanding of the Earth's motion.

The Panchasiddhantika is a collection of five astronomical treatises: Surya Siddhanta, Romaka Siddhanta, Paulisa Siddhanta, Vasistha Siddhanta, and Brahmagupta Siddhanta.

Aryabhata devised a method for accurately calculating the time of sunrise and sunset, demonstrating his expertise in astronomical calculations.

The Lilavati, written by Bhaskara II, is a significant text in the field of arithmetic, covering topics such as fractions, square roots, and progressions.

Aryabhata developed a method for estimating the distance between the Earth and the Moon, demonstrating his proficiency in astronomical calculations.

The Brihat Samhita provides comprehensive descriptions of eclipses, planets, constellations, and comets, showcasing the wide range of astronomical knowledge in ancient India.

Aryabhata is credited with proposing the revolutionary idea of the Earth's revolution around the Sun, a significant contribution to the understanding of the solar system.