Subrahmanyan Chandrasekhar was an Indian-American astrophysicist who made significant contributions to the study of galaxy formation and evolution. He is best known for his work on the Chandrasekhar limit, which determines the maximum mass of a white dwarf star.

The Giant Metrewave Radio Telescope (GMRT) is a radio telescope located near Pune, India. It is one of the largest radio telescopes in the world and has been used to study a wide range of astronomical objects, including galaxies.

Jayant Narlikar is an Indian astrophysicist who made significant contributions to the development of the Lambda-CDM model of galaxy formation. He is also known for his work on alternative theories of gravity.

AstroSat is an Indian satellite mission that was launched in 2015 to study the evolution of galaxies. It carries five instruments that are designed to observe X-rays, ultraviolet light, and visible light.

S. N. Tandon is an Indian astronomer who is known for his work on the formation of elliptical galaxies. He has proposed a model that suggests that elliptical galaxies are formed through the merger of smaller galaxies.

Hanle Observatory is an Indian astronomical observatory that is located in the Himalayas. It is one of the highest observatories in the world and is used to study a variety of astronomical objects, including galaxies.

T. Padmanabhan is an Indian astrophysicist who is known for his work on the evolution of spiral galaxies. He has proposed a model that suggests that spiral galaxies are formed through the accretion of gas onto a central black hole.

The Himalayan Chandra Telescope (HCT) is an Indian telescope that is used to study the formation of galaxies. It is located at the Hanle Observatory in the Himalayas.

Biman Nath is an Indian astrophysicist who is known for his work on the role of dark matter in galaxy formation. He has proposed a model that suggests that dark matter plays a crucial role in the formation of galaxies.

AstroSat-2 is an Indian satellite mission that is planned to be launched in 2023. It will carry five instruments that are designed to study the structure of galaxies.

R. K. Anand is an Indian astrophysicist who is known for his work on the formation of dwarf galaxies. He has proposed a model that suggests that dwarf galaxies are formed through the fragmentation of larger galaxies.

The Udaipur Solar Observatory (USO) is an Indian astronomical observatory that is located in the Thar Desert. It is used to study the Sun and other astronomical objects.

Jayant Narlikar is an Indian astrophysicist who is known for his work on the role of supermassive black holes in galaxy formation. He has proposed a model that suggests that supermassive black holes play a crucial role in the formation of galaxies.

AstroSat-3 is an Indian satellite mission that is planned to be launched in 2025. It will carry five instruments that are designed to study the evolution of galaxies in the early Universe.