A pigeon flies at the Gurudwara Bangla Sahib under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Xavier GALIANA
A man drinks water after eating from a roadside snack vendor amidst dense fog early morning in New Delhi, India, Monday, Dec. 30, 2019. Delhi, which is witnessing the longest spell of cold weather in the last 22 years, woke up to a blanket of dense fog engulfing most parts of the national capital on Monday morning, disrupting rail, road and air traffic adversely. (AP Photo/Manish Swarup)
TOPSHOT - A woman walks along a street under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Jewel SAMAD
TOPSHOT - A man crosses a street as commuters make their way under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Jewel SAMAD
epa08095601 People sit next to a fire on a cold morning in New Delhi, India, 31 December 2019. Northern India remains in the grip of cold as minimum temperature in the national capital New Delhi dropped below the three degrees Celsius mark. EPA/RAJAT GUPTA
TOPSHOT - A man crosses a street under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Jewel SAMAD
epa08095597 People line up at a tea stall on a cold morning in New Delhi, India, 31 December 2019. Northern India remains in the grip of cold as minimum temperature in the national capital New Delhi dropped below the three degrees Celsius mark. EPA/RAJAT GUPTA
A person warms himself near a fire sitting next to cows in Prayagraj, India, Monday, Dec. 30, 2019. Opaque, chilly smog blanketed northern India on Monday as low temperatures collided with hazardous levels of air pollution. Across many cities in the region, including New Delhi, the capital, visibility was reduced to 200 meters (218 yards), according to the India Meteorological Department. (AP Photo/Rajesh Kumar Singh)
A thick layer of fog engulfs city sky line in New Delhi, India, Monday, Dec. 30, 2019.. The Indian capital which is witnessing the longest spell of cold weather in the last 22 years, woke up to a blanket of dense fog disrupting rail, road and air traffic adversely. (AP Photo/Manish Swarup)
A pigeon flies at the Gurudwara Bangla Sahib under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Xavier GALIANA
A man drinks water after eating from a roadside snack vendor amidst dense fog early morning in New Delhi, India, Monday, Dec. 30, 2019. Delhi, which is witnessing the longest spell of cold weather in the last 22 years, woke up to a blanket of dense fog engulfing most parts of the national capital on Monday morning, disrupting rail, road and air traffic adversely. (AP Photo/Manish Swarup)
TOPSHOT - A woman walks along a street under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Jewel SAMAD
TOPSHOT - A man crosses a street as commuters make their way under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Jewel SAMAD
epa08095601 People sit next to a fire on a cold morning in New Delhi, India, 31 December 2019. Northern India remains in the grip of cold as minimum temperature in the national capital New Delhi dropped below the three degrees Celsius mark. EPA/RAJAT GUPTA
TOPSHOT - A man crosses a street under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Jewel SAMAD
epa08095597 People line up at a tea stall on a cold morning in New Delhi, India, 31 December 2019. Northern India remains in the grip of cold as minimum temperature in the national capital New Delhi dropped below the three degrees Celsius mark. EPA/RAJAT GUPTA
A person warms himself near a fire sitting next to cows in Prayagraj, India, Monday, Dec. 30, 2019. Opaque, chilly smog blanketed northern India on Monday as low temperatures collided with hazardous levels of air pollution. Across many cities in the region, including New Delhi, the capital, visibility was reduced to 200 meters (218 yards), according to the India Meteorological Department. (AP Photo/Rajesh Kumar Singh)
A thick layer of fog engulfs city sky line in New Delhi, India, Monday, Dec. 30, 2019.. The Indian capital which is witnessing the longest spell of cold weather in the last 22 years, woke up to a blanket of dense fog disrupting rail, road and air traffic adversely. (AP Photo/Manish Swarup)
A pigeon flies at the Gurudwara Bangla Sahib under heavy foggy conditions in New Delhi on December 30, 2019. / AFP / Xavier GALIANA
