The International Solar Alliance (ISA) is an alliance of over 120 countries that works to promote solar energy and reduce reliance on fossil fuels. The Headquarters of the International Solar Alliance is situated in Gurugram, India. Gurugram, located in the northern part of India, is part of the National Capital Region and is recognized as a vital hub for India’s solar energy initiatives. The establishment of the ISA headquarters in Gurugram underscores India's leadership role in advocating for renewable energy on the global stage.