Started in India in 2009, Earth Hour, in its very first year, garnered the support of people across 58 cities in the country. Over the years, the campaign has seen massive participation from all society. This includes individuals, schools, colleges, communities, celebrities, chief ministers, and several government officials.
The campaign also sees landmark monuments' participation across the country like Rashtrapati Bhavan, India Gate, Gateway of India, the Charminar, Howrah Bridge, etc., switching off its lights for an hour to commemorate the hour.