Indians light fire crackers wearing masks to fight pollution as they celebrate Diwali, the festival of lights in Hyderabad, India, Wednesday, November 7, 2018. India's top court recently ruled that only less polluting firecrackers should be manufactured and sold. (Photo by Mahesh Kumar A./AP Photo)





Bollywood actors Deepika Padukone, right, and Ranveer Singh pose at their wedding reception in Bangalore, India, Wednesday, November 21, 2018. The couple got married at Villa Balbianello, a lakeside mansion featured in Star Wars and James Bond films in Lenno, Como lake, northern Italy on Nov. 14, 2018. (Photo by Aijaz Rahi/AP Photo)





Indian women take pictures on a boat as migratory birds fly overhead on the Yamuna River on a morning of heavy air pollution in New Delhi on November 20, 2018. Smog levels spike during winter in Delhi, when air quality often eclipses the World Health Organization' s safe levels. Cooler air traps pollutants – such as from vehicles, building sites and farmers burning crops in regions outside the Indian capital – close to the ground. (Photo by Noemi Cassanelli/AFP Photo)





Delhi police commandos wear pollution mask and talk a day after Diwali festival, in New Delhi, India, Thursday, November 8, 2018. Toxic smog shrouds the Indian capital as air quality falls to hazardous levels with tens of thousands of people setting off massive firecrackers to celebrate the major Hindu festival of Diwali on Wednesday night. (Photo by Manish Swarup/AP Photo)





An artisan places an artificial sickle on an idol of Hindu goddess Kali inside a pandal, or a temporary platform, on the occasion of Kali Puja festival in Kolkata, India on November 6, 2018. (Photo by Rupak De Chowdhuri/Reuters)





Participants light earthen oil lamps on the banks of the Sarayu river in an attempt to enter the Guinness World Records for the largest display of oil lamps on the eve of Diwali, the Hindu festival of lights, in Ayodhya in the northern state of Utar Pradesh, India on November 6, 2018. (Photo by Pawan Kumar/Reuters)





Participants light earthen oil lamps on the banks of the Sarayu river in an attempt to enter the Guinness World Records for the largest display of oil lamps on the eve of Diwali, the Hindu festival of lights, in Ayodhya in the northern state of Utar Pradesh, India on November 6, 2018. (Photo by Pawan Kumar/Reuters)





People light firecrackers on a street as they celebrate Diwali in Mumbai, India on November 7, 2018. (Photo by Francis Mascarenhas/Reuters)





A man lights a firecracker while celebrating Diwali in Mumbai, India on November 7, 2018. (Photo by Danish Siddiqui/Reuters)





A woman holds a child in her lap as they light a sparkler to celebrate Diwali in New Delhi, India on November 7, 2018. (Photo by Anushree Fadnavis/Reuters)





Hindu devotees hold up clothes and umbrellas to receive rice as offerings being distributed by a temple authority on the occasion of the Annakut festival in Kolkata, India, November 8, 2018. (Photo by Rupak De Chowdhuri/Reuters)





Boys cross a canal through a log on the outskirts of Srinagar, November 6, 2018. (Photo by Danish Ismail/Reuters)





Hindu devotees hold up clothes and umbrellas to receive rice as offerings being distributed by a temple authority on the occasion of the Annakut festival in Kolkata, India, November 8, 2018. (Photo by Rupak De Chowdhuri/Reuters)





A priest arranges sweets kept inside a temple as offerings by Hindu devotees as part of a ritual to mark “Annakut” festival during Diwali, the Hindu festival of lights, in Ahmedabad, India, November 7, 2018. (Photo by Amit Dave/Reuters)





Nihangs or Sikh warriors, display their skills during a religious procession to mark the Bandi Chhor Divas in Amritsar, India, November 8, 2018. Sikhs celebrate Bandi Chhor Divas a day after Diwali to mark the return of their Sixth Guru, Guru Hargobind, who was freed from imprisonment from the fort of Gwalior by Mughal Emperor Jahangir in 1619. (Photo by Munish Sharma/Reuters)





A Hindu woman worships the Sun god in the waters of a lake during the religious festival of Chhath Puja in Agartala, India, November 13, 2018. (Photo by Jayanta Dey/Reuters)





Hindu women lie as they worship the Sun god in the waters of the Arabian Sea during the religious festival of Chhath Puja in Mumbai, India, November 13, 2018. (Photo by Francis Mascarenhas/Reuters)





Hindu devotees prepare to worship the Sun god on the banks of the Sabarmati river during the religious festival of Chhath Puja in Ahmedabad, India, November 14, 2018. (Photo by Amit Dave/Reuters)





Hindu devotees collect offerings before worshipping the Sun god on the banks of the Sabarmati river during the religious festival of Chhath Puja in Ahmedabad, India, November 14, 2018. (Photo by Amit Dave/Reuters)