The observed rotation curves of galaxies show that the orbital velocities of stars do not decrease as expected based on the visible mass of the galaxy, suggesting the presence of additional mass, or dark matter.

Subrahmanyan Chandrasekhar was an Indian-American astrophysicist who made significant contributions to the study of dark matter and galaxy dynamics, including his work on the Chandrasekhar limit and the virial theorem.

Astrosat is an Indian satellite mission launched in 2015 to study dark matter, black holes, neutron stars, and other high-energy astrophysical phenomena.

The Tata Institute of Fundamental Research (TIFR) is a premier Indian research institution that has made significant contributions to the study of dark matter and galaxy dynamics, including the work of Subrahmanyan Chandrasekhar.

Gravitational lensing is a technique used by Indian astronomers to study dark matter in galaxies by observing the distortion of light from distant objects due to the gravitational field of the dark matter.

Jayaram N. Chengalur is an Indian astronomer known for his work on the dynamics of dwarf galaxies and their role in understanding dark matter.

The Giant Metrewave Radio Telescope (GMRT) is an Indian astronomical observatory that has been used to study dark matter and galaxy dynamics through radio observations.

Somnath Bharadwaj is an Indian astronomer known for his work on the formation and evolution of galaxies in the context of dark matter.

The Indian Dark Matter Survey (IDMS) is an astronomical survey aimed at studying the distribution of dark matter in the universe.

Tarun Souradeep is an Indian astronomer known for his work on the theoretical aspects of dark matter and its implications for cosmology.

The Dark Matter Collaboration of India (DMCI) is an astronomical collaboration that aims to study dark matter and galaxy dynamics through gravitational lensing.

Suryadeep Ray is an Indian astronomer known for their work on the observational constraints on dark matter properties.

The Indian X-ray Observatory (IXO) is an astronomical facility being developed to study dark matter and galaxy dynamics through X-ray observations.

R. Nityananda is an Indian astronomer known for their work on the role of dark matter in the formation of cosmic structures.

The Indian Radio Astronomy Network (IRAF) is an astronomical collaboration that aims to study dark matter and galaxy dynamics through radio observations.