Which government agency organized the expo in Thiruvananthapuram to promote and sell solar energy systems?

The Kerala government launched a project to turn every rooftop in Thiruvananthapuram into a solar producing station. A three-day expo was inaugurated by the Kerala government-run ANERT (Agency for New and Renewable Energy Research and Technology)  where the public can learn about and buy several solar energy systems  to implement the central scheme that was launched by Prime Minister Narendra Modi. PM Narendra Modi had launched the national portal for rooftop solar scheme on July 30, 2022. The solar city project aims to meet all power requirements of a city from renewable energy sources. About Kerala Capital: Thiruvananthapuram           Chief minister: Pinarayi Vijayan              Governor: Arif Mohammed Khan