Answer : 1. "Rotterdam, Netherlands"
Explanation :

India has set up its pavilion at the 2024 World Hydrogen Summit in Rotterdam, which was inaugurated by Bhupinder Singh Bhalla of the Ministry of New and Renewable Energy on May 12. The event, which runs from 13-15 May, hosts 15,000 delegates from around the world. Organized by partners including the Sustainable Energy Council and the Government of the Netherlands, it is a major forum promoting green hydrogen technology and its global adoption as a sustainable fuel source.