Meghnad Saha played a pivotal role in the development of astronomy in India. He established the University of Calcutta's Department of Physics and Astrophysics and founded the Indian Association for the Cultivation of Science.

Subrahmanyan Chandrasekhar made significant contributions to the understanding of variable stars, including the development of the Chandrasekhar limit, which describes the maximum mass of a white dwarf star.

The Indian Institute of Astrophysics (IIA) was established in 1951 as a national center for research in astronomy, astrophysics, and related fields.

Vigyan Prasar, established in 1989, is a government organization dedicated to promoting science communication and public outreach, including astronomy education.

The Starry Nights Festival is an annual event organized by the Nehru Planetarium in New Delhi, featuring astronomy-related activities, talks, and exhibitions.

Govind Swarup was a renowned Indian radio astronomer who played a crucial role in the conception and construction of the Giant Metrewave Radio Telescope (GMRT).

The first planetarium in India, the Nehru Planetarium, was established in New Delhi in 1954.

Homi J. Bhabha, a prominent Indian nuclear physicist, also made significant contributions to the study of cosmic rays and the development of cosmic ray research in India.

The Indian Astronomical Society organizes an annual Astronomy Olympiad, a competitive exam for students to showcase their knowledge and interest in astronomy.

T. Padmanabhan is a renowned Indian theoretical physicist and cosmologist who has made significant contributions to the study of the evolution of galaxies and other cosmological phenomena.

Aryabhata, India's first satellite, was launched in 1975, marking a significant milestone in the country's space program.

Subrahmanyan Chandrasekhar made significant contributions to the study of black holes, including the development of the Chandrasekhar limit, which describes the maximum mass of a white dwarf star before it collapses into a black hole.

The Astronomical Society of India organizes an annual Astronomy Camp, a residential program for students to engage in astronomy-related activities and learn from experts.

T. Padmanabhan has made significant contributions to the study of gravitational waves, including developing theoretical models for their detection and analyzing their implications for cosmology.