A man works on a structure for the upcoming 'Magh Mela' festival in Prayagraj, in the northern Indian state of Uttar Pradesh, India. Tuesday, Dec. 26, 2023. Thousands of people take holy dips at the confluence of the rivers Ganges, Yamuna and the mythical Saraswati during the month-long fair that begins later this month. (AP Photo/Rajesh Kumar Singh)