Aryabhata was an ancient Indian astronomer and mathematician who lived in the 5th century CE. He is known for his contributions to the field of astronomy, including his work on the heliocentric model of the solar system and his calculations of the Earth's circumference.

Brahmagupta was an Indian astronomer and mathematician who lived in the 7th century CE. He is credited with developing the concept of the zero, which is a fundamental concept in mathematics.

Bhaskara II was an Indian astronomer and mathematician who lived in the 12th century CE. He is known for his work on the motion of the planets, including his calculations of the orbits of the planets and his development of a model for the solar system.

Varahamihira was an Indian astronomer and astrologer who lived in the 6th century CE. He is known for his work on astrology, including his development of a system for predicting the future based on the positions of the stars and planets.

The Indian Space Research Organisation (ISRO) is the Indian government agency responsible for promoting and regulating astronomy in the country. ISRO is responsible for conducting research in astronomy, developing and launching satellites, and promoting space education and outreach.

The Department of Science and Technology (DST) is the Indian government agency responsible for funding astronomy research in the country. DST provides grants and funding to astronomers and institutions for conducting research in astronomy and related fields.

The Indian Space Research Organisation (ISRO) is the Indian government agency responsible for promoting space education and outreach in the country. ISRO conducts various educational programs and outreach activities to promote interest in astronomy and space science among students and the general public.

The Ministry of Communications and Information Technology (MCIT) is the Indian government agency responsible for regulating the use of radio telescopes in the country. MCIT issues licenses and permits for the use of radio telescopes and ensures that they are used in accordance with the regulations.

The Ministry of External Affairs (MEA) is the Indian government agency responsible for coordinating international cooperation in astronomy. MEA negotiates and signs agreements with other countries for cooperation in astronomy research and projects.

The Ministry of Tourism (MoT) is the Indian government agency responsible for promoting astronomy tourism in the country. MoT promotes astronomy tourism by developing and promoting astronomy-related tourist destinations and activities.

The Ministry of Education (MoE) is the Indian government agency responsible for promoting astronomy education in schools and colleges. MoE develops and implements astronomy education programs and curriculum for schools and colleges.

The University Grants Commission (UGC) is the Indian government agency responsible for promoting astronomy research in universities and institutions. UGC provides grants and funding to universities and institutions for conducting research in astronomy and related fields.

The National Council of Science Museums (NCSM) is the Indian government agency responsible for promoting astronomy outreach and public engagement. NCSM organizes astronomy exhibitions, workshops, and events to promote interest in astronomy among the general public.

The Indian Institute of Astrophysics (IIA) is the Indian government agency responsible for promoting astronomy research in the field of astrobiology. IIA conducts research on the origin and evolution of life in the universe and searches for life beyond Earth.

The Inter-University Centre for Astronomy and Astrophysics (IUCAA) is the Indian government agency responsible for promoting astronomy research in the field of cosmology. IUCAA conducts research on the origin and evolution of the universe and the fundamental laws of physics that govern it.