![A combination photo shows the India Gate before (top) and at the start of Earth Hour at 8:30pm (below) in New Delhi March 27, 2010. Earth Hour, when everyone around the world A combination photo shows the India Gate before (top) and at the start of Earth Hour at 8:30pm (below) in New Delhi March 27, 2010. Earth Hour, when everyone around the world](https://c8.alamy.com/comp/2E6YE5F/a-combination-photo-shows-the-india-gate-before-top-and-at-the-start-of-earth-hour-at-830pm-below-in-new-delhi-march-27-2010-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reutersadnan-abidi-india-tags-environment-cityscape-society-2E6YE5F.jpg)
A combination photo shows the India Gate before (top) and at the start of Earth Hour at 8:30pm (below) in New Delhi March 27, 2010. Earth Hour, when everyone around the world
![An ice-cream cart is pictured next to the India Gate before Earth Hour in New Delhi March 31, 2012. Earth Hour, when everyone around the world is asked to turn off lights An ice-cream cart is pictured next to the India Gate before Earth Hour in New Delhi March 31, 2012. Earth Hour, when everyone around the world is asked to turn off lights](https://c8.alamy.com/comp/2CYFDD5/an-ice-cream-cart-is-pictured-next-to-the-india-gate-before-earth-hour-in-new-delhi-march-31-2012-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reutersparivartan-sharma-india-tags-society-environment-energy-anniversary-travel-cityspace-2CYFDD5.jpg)
An ice-cream cart is pictured next to the India Gate before Earth Hour in New Delhi March 31, 2012. Earth Hour, when everyone around the world is asked to turn off lights
![India Delhi The Jantar Mantar Observatory Jai Prakash Yantra Measurement of coordinates of celestial bodies and local time Stock Photo - Alamy India Delhi The Jantar Mantar Observatory Jai Prakash Yantra Measurement of coordinates of celestial bodies and local time Stock Photo - Alamy](https://c8.alamy.com/comp/BAK6PG/india-delhi-the-jantar-mantar-observatory-jai-prakash-yantra-measurement-BAK6PG.jpg)
India Delhi The Jantar Mantar Observatory Jai Prakash Yantra Measurement of coordinates of celestial bodies and local time Stock Photo - Alamy
![budapest: Go First operates its 1st evacuation flight from Budapest to Delhi; brings back 177 stranded Indians - The Economic Times budapest: Go First operates its 1st evacuation flight from Budapest to Delhi; brings back 177 stranded Indians - The Economic Times](https://img.etimg.com/thumb/msid-89985740,width-300,imgsize-36168,,resizemode-4,quality-100/go-first.jpg)
budapest: Go First operates its 1st evacuation flight from Budapest to Delhi; brings back 177 stranded Indians - The Economic Times
![The illuminated India Gate is pictured before Earth Hour in New Delhi March 29, 2014. Earth Hour, when everyone around the world is asked to turn off lights for an hour from The illuminated India Gate is pictured before Earth Hour in New Delhi March 29, 2014. Earth Hour, when everyone around the world is asked to turn off lights for an hour from](https://c8.alamy.com/comp/2CYJNA8/the-illuminated-india-gate-is-pictured-before-earth-hour-in-new-delhi-march-29-2014-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reutersvijay-mathur-india-tags-energy-society-travel-2CYJNA8.jpg)
The illuminated India Gate is pictured before Earth Hour in New Delhi March 29, 2014. Earth Hour, when everyone around the world is asked to turn off lights for an hour from
![Go First operates its 1st evacuation flight from Budapest to Delhi; brings back 177 stranded Indians | The Financial Express Go First operates its 1st evacuation flight from Budapest to Delhi; brings back 177 stranded Indians | The Financial Express](https://www.financialexpress.com/wp-content/uploads/2022/03/go-first.jpg)
Go First operates its 1st evacuation flight from Budapest to Delhi; brings back 177 stranded Indians | The Financial Express
![An artistic tryst with time: Delhi artist duo collaborate with Rado to create unique, one-of-a-kind- The New Indian Express An artistic tryst with time: Delhi artist duo collaborate with Rado to create unique, one-of-a-kind- The New Indian Express](https://images.newindianexpress.com/uploads/user/imagelibrary/2021/9/4/w900X450/rado.jpg?w=400&dpr=2.6)
An artistic tryst with time: Delhi artist duo collaborate with Rado to create unique, one-of-a-kind- The New Indian Express
![A combination picture shows the India Gate before (top) and during Earth Hour in New Delhi March 31, 2012. Earth Hour, when everyone around the world is asked to turn off lights A combination picture shows the India Gate before (top) and during Earth Hour in New Delhi March 31, 2012. Earth Hour, when everyone around the world is asked to turn off lights](https://c8.alamy.com/comp/2CY54DB/a-combination-picture-shows-the-india-gate-before-top-and-during-earth-hour-in-new-delhi-march-31-2012-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reutersparivartan-sharma-india-tags-environment-energy-society-travel-cityspace-anniversary-2CY54DB.jpg)
A combination picture shows the India Gate before (top) and during Earth Hour in New Delhi March 31, 2012. Earth Hour, when everyone around the world is asked to turn off lights
![Average diurnal variation of PM 2.5 concentrations for each season. (a)... | Download Scientific Diagram Average diurnal variation of PM 2.5 concentrations for each season. (a)... | Download Scientific Diagram](https://www.researchgate.net/publication/337003141/figure/fig4/AS:850444842721280@1579773259436/Average-diurnal-variation-of-PM-25-concentrations-for-each-season-a-Delhi-b.png)
Average diurnal variation of PM 2.5 concentrations for each season. (a)... | Download Scientific Diagram
![Delhi. 21st Aug, 2019. People stay in the water as overflowing Yamuna water flooded into the low lying slum area in North India's Delhi on Aug. 21, 2019. A high alert has Delhi. 21st Aug, 2019. People stay in the water as overflowing Yamuna water flooded into the low lying slum area in North India's Delhi on Aug. 21, 2019. A high alert has](https://c8.alamy.com/comp/WANE59/delhi-21st-aug-2019-people-stay-in-the-water-as-overflowing-yamuna-water-flooded-into-the-low-lying-slum-area-in-north-indias-delhi-on-aug-21-2019-a-high-alert-has-been-sounded-in-the-indian-capital-even-as-the-river-passing-through-the-city-yamuna-has-breached-the-danger-mark-2053-meters-mark-on-monday-night-after-excess-water-was-released-from-rains-hit-hilly-state-uttarakhand-at-600-am-local-time-on-tuesday-the-water-level-of-the-river-was-recorded-at-almost-206-meters-an-official-of-delhi-government-said-credit-partha-sarkarxinhua-WANE59.jpg)
Delhi. 21st Aug, 2019. People stay in the water as overflowing Yamuna water flooded into the low lying slum area in North India's Delhi on Aug. 21, 2019. A high alert has
![A combination picture shows the India Gate war memorial before (top) and after the lights were turned off for Earth Hour in New Delhi, India, March 27, 2021. REUTERS/Anushree Fadnavis Stock Photo - A combination picture shows the India Gate war memorial before (top) and after the lights were turned off for Earth Hour in New Delhi, India, March 27, 2021. REUTERS/Anushree Fadnavis Stock Photo -](https://c8.alamy.com/comp/2CXC539/a-combination-picture-shows-the-india-gate-before-bottom-and-during-earth-hour-in-new-delhi-march-29-2014-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reutersvijay-mathur-india-tags-energy-society-travel-2CXC539.jpg)
A combination picture shows the India Gate war memorial before (top) and after the lights were turned off for Earth Hour in New Delhi, India, March 27, 2021. REUTERS/Anushree Fadnavis Stock Photo -
![A combination picture shows India's presidential palace Rashtrapati Bhavan before (bottom) and during Earth Hour in New Delhi March 29, 2014. Earth Hour, when everyone around the world is asked to turn A combination picture shows India's presidential palace Rashtrapati Bhavan before (bottom) and during Earth Hour in New Delhi March 29, 2014. Earth Hour, when everyone around the world is asked to turn](https://c8.alamy.com/comp/2CYAR2G/a-combination-picture-shows-indias-presidential-palace-rashtrapati-bhavan-before-bottom-and-during-earth-hour-in-new-delhi-march-29-2014-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reutersvijay-mathur-india-tags-energy-society-politics-travel-2CYAR2G.jpg)
A combination picture shows India's presidential palace Rashtrapati Bhavan before (bottom) and during Earth Hour in New Delhi March 29, 2014. Earth Hour, when everyone around the world is asked to turn
![A combination picture shows the India Gate before (bottom) and during Earth Hour in New Delhi March 23, 2013. Earth Hour, when everyone around the world is asked to turn off lights A combination picture shows the India Gate before (bottom) and during Earth Hour in New Delhi March 23, 2013. Earth Hour, when everyone around the world is asked to turn off lights](https://c8.alamy.com/comp/2CX1509/a-combination-picture-shows-the-india-gate-before-bottom-and-during-earth-hour-in-new-delhi-march-23-2013-earth-hour-when-everyone-around-the-world-is-asked-to-turn-off-lights-for-an-hour-from-830-pm-local-time-is-meant-as-a-show-of-support-for-tougher-action-to-confront-climate-change-reutersmansi-thapliyal-india-tags-energy-society-tpx-images-of-the-day-2CX1509.jpg)
A combination picture shows the India Gate before (bottom) and during Earth Hour in New Delhi March 23, 2013. Earth Hour, when everyone around the world is asked to turn off lights
![Quake Info: Reported Seismic-like Event (likely no Quake): North West Delhi, 12 km Northwest of New Delhi, India, Saturday, Feb 5, 2022 at 3:35 am (GMT +5:30) - 1 User Experience Report Quake Info: Reported Seismic-like Event (likely no Quake): North West Delhi, 12 km Northwest of New Delhi, India, Saturday, Feb 5, 2022 at 3:35 am (GMT +5:30) - 1 User Experience Report](https://www.volcanodiscovery.com/maps/quakemap-6633011.jpg)
Quake Info: Reported Seismic-like Event (likely no Quake): North West Delhi, 12 km Northwest of New Delhi, India, Saturday, Feb 5, 2022 at 3:35 am (GMT +5:30) - 1 User Experience Report
![Nighttime land surface temperatures for Delhi, compiled from ASTER data... | Download Scientific Diagram Nighttime land surface temperatures for Delhi, compiled from ASTER data... | Download Scientific Diagram](https://www.researchgate.net/profile/Maik-Netzband/publication/240668948/figure/fig1/AS:412112766685186@1475266748194/Nighttime-land-surface-temperatures-for-Delhi-compiled-from-ASTER-data-for-2-October.png)