The following is a list of notable Indian think tanks. India has the second-largest number of think tanks in the world, with the country's total hitting 509 in 2018 behind 1871 in the United States of America and ahead of the People's Republic of China (507), the United Kingdom (321), and Argentina (227). Many of these are headquartered at its capital New Delhi and range from government aided organisations to privately funded ones.(This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.)