According to Framework Agreement on International Solar Alliance, after 30th day of 15th member ratification of the Frame Work Agreement, the ISA will become a treaty based legal entity.

• After New Guinea ratified the Framework Agreement on 6th November, ISA became a legal entity after 30 days i.e. on 6th December.
• It is a group of 121 members including 107 sunshine countries with an aim to promote the use of solar energy and promotion of sustainable environment.

The International Solar Alliance is an alliance of more than 121 countries initiated by India, most of them being sunshine countries, which lie either completely or partly between the Tropic of Cancer and the Tropic of Capricorn.