The Tata Institute of Fundamental Research (TIFR) in Mumbai is a prominent research institute in India that has made significant contributions to the study of dark energy.

Indian astronomers primarily employ galaxy redshift surveys to measure the expansion history of the universe and infer the properties of dark energy.

The Astrosat satellite mission, launched in 2015, carries instruments dedicated to studying dark energy through observations of galaxy clusters and supernovae.

The Indian Dark Energy Consortium (INDEC) is a collaboration of Indian astronomers working together to study dark energy and its implications for cosmology.

Jayant Narlikar, an Indian astrophysicist and cosmologist, has made notable contributions to the theoretical understanding of dark energy and alternative theories of gravity.

The Devasthal Optical Telescope (DOT) in Uttarakhand, India, is equipped with instruments specifically designed for studying dark energy through observations of distant galaxies.

Arvind Paranjpye, an Indian astrophysicist, has conducted extensive research on observational constraints on dark energy using supernovae data.

The Galaxy Cluster Redshift Survey India (GCRSI) is an astronomical survey conducted in India to study dark energy through measurements of the redshift and properties of galaxy clusters.

The Inter-University Centre for Astronomy and Astrophysics (IUCAA) in Pune, India, has developed a dark energy camera for use in astronomical observations to study dark energy.

The Indian Gravitational Lensing Collaboration (IGLC) is a collaboration of Indian astronomers working together to study dark energy using gravitational lensing observations.

T. Padmanabhan, an Indian theoretical physicist, has conducted extensive research on developing theoretical models to explain dark energy and its implications for cosmology.

The Vainu Bappu Observatory in Kavalur, India, hosts a telescope dedicated to studying dark energy through observations of supernovae.

Subrahmanyan Chandrasekhar, an Indian astrophysicist and Nobel laureate, conducted extensive research on observational constraints on dark energy using galaxy cluster data.

The Cosmic Microwave Background Survey India (CMBSI) is an astronomical survey conducted in India to study dark energy through measurements of cosmic microwave background radiation.

The National Centre for Radio Astrophysics (NCRA) in Pune, India, has developed a dark energy simulator for use in cosmological studies to simulate the effects of dark energy on the expansion of the universe.