New Delhi, March 22 -- Cities across India observed Earth Hour on Saturday night. The lights were turned off between 8:30 pm and 9:30 pm as part of the event.

Many iconic buildings and places were part of the event.

Lights at the iconic India Gate in Delhi were turned off to conserve energy.

lights at the Qutub Minar were also turned off.

In Hyderabad, lights at the Dr BR Ambedkar Telangana State Secretariat were turned off to conserve energy.

Kerala Assembly Building also participated, switching off its lights.

Organized by the non-profit organization World Wide Fund (WWF), 'Earth Hour' was famously started as a lights-out event in Sydney, Australia in 2007. Since 2007, it has grown to engage millions of supporters in more than 190...