Aryabhata (476-550 CE) is widely regarded as the father of Indian astronomy. He made significant contributions to the fields of mathematics, astronomy, and physics.

Aryabhata proposed the heliocentric theory of the solar system, which places the Sun at the center and the Earth and other planets revolving around it. This theory was later popularized by Nicolaus Copernicus in the 16th century.

Bhaskara (1114-1185 CE) was the first Indian astronomer to observe and document sunspots. He also made important contributions to the fields of mathematics and astronomy.

Brahmagupta (598-668 CE) developed a method for calculating the distance to the Moon. He also made significant contributions to the fields of mathematics and astronomy.

Subrahmanyan Chandrasekhar (1910-1995) was the first Indian astronomer to propose the existence of black holes. He also made significant contributions to the fields of astrophysics and cosmology.

Jayant Narlikar (born 1938) is an Indian astronomer who played a key role in the development of the theory of galaxy formation. He also made significant contributions to the fields of cosmology and astrophysics.

Subrahmanyan Chandrasekhar was the first Indian astronomer to receive the Nobel Prize in Physics in 1983 for his work on the theory of white dwarf stars.

T.G. Cowling (1906-1990) was an Indian astronomer who made significant contributions to the dynamics of spiral galaxies. He also made important contributions to the fields of astrophysics and cosmology.

V.C. Rubin (1923-2016) was an Indian astronomer who made pioneering observations of the rotation curves of galaxies. His work provided strong evidence for the existence of dark matter.

Subrahmanyan Chandrasekhar made significant contributions to the study of the formation and evolution of galaxies. He also made important contributions to the fields of astrophysics and cosmology.

Meghnad Saha (1893-1956) is considered the father of Indian astrophysics. He made significant contributions to the fields of astrophysics, spectroscopy, and planetary atmospheres.

S. Chandrasekhar made significant contributions to the study of the structure and dynamics of elliptical galaxies. He also made important contributions to the fields of astrophysics and cosmology.

V.C. Rubin made significant contributions to the study of the dynamics of globular clusters. He also made important contributions to the fields of astrophysics and cosmology.

Jayant Narlikar made significant contributions to the study of the evolution of galaxies. He also made important contributions to the fields of cosmology and astrophysics.

T.G. Cowling made significant contributions to the study of the dynamics of spiral galaxies. He also made important contributions to the fields of astrophysics and cosmology.