A boy picks marigold flowers used to make garlands and offer prayers for the Tihar festival, also called Diwali, in Kathmandu, Nepal, on October 29, 2016. Photo: Reuters

A boy picks marigold flowers used to make garlands and offer prayers for the Tihar festival, also called Diwali, in Kathmandu, Nepal, on October 29, 2016. Photo: Reuters