French President Francois Hollande and Prime Minister Narendra Modi today took an "eco friendly" metro ride to Gurgaon to inaugurate the interim secretariat of the International Solar Alliance (ISA).

The two leaders boarded the metro shortly after 3 pm. Indian officials and the French delegation, including the country's Foreign Minister Laurent Fabius, were seen accompanying them. Official twitter handles, @Elysee and @PMOIndia, posted pictures of the journey.

In one of the pictures, Modi and Hollande are seen standing at the platform of the Race Course station. "An eco friendly ride! PM @narendramodi and Prez @fhollande travel on Delhi metro on way to Gurgaon," Ministry of External Affairs spokesperson Vikas Swarup tweeted.

Hollande, who arrived in India yesterday, will also lay the foundation stone of the headquarters of ISA, which is aimed at increasing utilisation and promotion of solar energy in solar-rich nations. The event will be held at the National Institute of Solar Energy (NISE) in Gurgaon.