Subrahmanyan Chandrasekhar, an Indian-American astrophysicist, made significant contributions to the study of black holes and gravitational waves. He is known for his work on the Chandrasekhar limit, which describes the maximum mass a white dwarf star can have before collapsing into a black hole.

The Tata Institute of Fundamental Research (TIFR) in Mumbai, India, played a vital role in the detection of gravitational waves. TIFR scientists were involved in the design and construction of the Laser Interferometer Gravitational-Wave Observatory (LIGO), which made the groundbreaking discovery.

Indian scientists made a significant contribution to the first direct image of a black hole, which was achieved in 2019 by the Event Horizon Telescope (EHT) collaboration. Indian astronomers from the National Centre for Radio Astrophysics (NCRA) and the Inter-University Centre for Astronomy and Astrophysics (IUCAA) played key roles in this historic achievement.

Subrahmanyan Chandrasekhar led the team that developed the theoretical framework for the existence of black holes. His work on the Chandrasekhar limit and his contributions to the theory of stellar evolution laid the foundation for our understanding of these enigmatic objects.

Astrosat is an Indian satellite dedicated to studying black holes, neutron stars, and other celestial objects. It was launched in 2015 and carries five scientific instruments that enable observations in various wavelength ranges, including X-rays, ultraviolet, and visible light.

Homi J. Bhabha, an Indian nuclear physicist and cosmic ray researcher, played a key role in the development of numerical relativity. His work on the theory of elementary particles and his contributions to the study of cosmic rays helped advance our understanding of black holes and other relativistic phenomena.

The Indian Institute of Astrophysics (IIA) in Bengaluru, India, has made significant contributions to the study of black hole accretion disks. IIA scientists have conducted extensive research on the physics of accretion disks, including their structure, dynamics, and emission properties.

Subrahmanyan Chandrasekhar made significant contributions to the thermodynamics of black holes. His work on the Chandrasekhar limit and his studies on the properties of black holes, including their entropy and temperature, helped advance our understanding of these objects' behavior.

The Giant Metrewave Radio Telescope (GMRT) is a radio telescope located in Pune, India. It has been used to observe black holes and other compact objects, including pulsars and active galactic nuclei. The GMRT has made significant contributions to the study of black hole jets and the evolution of galaxies.

Subrahmanyan Chandrasekhar made significant contributions to the study of gravitational lensing of black holes. His work on the theory of general relativity and his studies on the bending of light around black holes helped advance our understanding of the gravitational effects of these objects.

The Tata Institute of Fundamental Research (TIFR) in Mumbai, India, has been involved in the development of gravitational wave detectors. TIFR scientists have contributed to the design and construction of the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo detector, which have played a crucial role in the detection of gravitational waves.

Subrahmanyan Chandrasekhar made significant contributions to the study of the quantum properties of black holes. His work on the Chandrasekhar limit and his studies on the behavior of matter in strong gravitational fields helped advance our understanding of the quantum nature of these objects.

The National Centre for Radio Astrophysics (NCRA) in Pune, India, has been involved in the study of black hole mergers. NCRA scientists have conducted research on the dynamics and gravitational waves emitted during black hole mergers, contributing to our understanding of these cataclysmic events.

Subrahmanyan Chandrasekhar made significant contributions to the study of the black hole information paradox. His work on the Chandrasekhar limit and his studies on the behavior of matter in strong gravitational fields helped advance our understanding of the information loss problem associated with black holes.