Gurgaon (Haryana), Jan 25 (ANI): French President Francois Hollande and Prime Minister Narendra Modi on Monday inaugurated interim secretariat of the International Solar Alliance (ISA). PM Modi and Hollande were accompanied by a bevy of senior ministers and officials who were part of their respective delegations and security personnel. Hollande also laid the foundation stone of ISA headquarters. ISA is a specialised platform for cooperation among 121 solar resource rich countries, which is aimed at increasing utilisation and promotion of solar energy.