[1] It is an initiative to set up advanced experimental facilities for a multi-institutional observatory project in gravitational-wave astronomy to be located near Aundha Nagnath, Hingoli District, Maharashtra, India.
[3] Since 2009, the IndIGO Consortium has been planning a roadmap for gravitational-wave astronomy and a phased strategy towards Indian participation in realizing a gravitational wave observatory in the Asia-Pacific region.
[6][2] In April 2023, the Cabinet of India approved the project to build the advanced gravitational-wave detector in Maharashtra at an estimated cost of Rs 2,600 crore.
For example, the first detected gravitational waves by LIGO could only pinpoint the location of the black hole merger source to a broad area of the southern hemisphere sky.
Previous studies have shown that a detector operational in India would improve source localization significantly, by an order of magnitude or more, depending on the region of the sky.
[7] In a joint statement in June 2023, President Joe Biden and Prime Minister Narendra Modi "welcomed the commencement of construction of a Laser Interferometer Gravitational-Wave Observatory (LIGO) in India.