The Maha Kumbh, the world's largest religious gathering, began in Prayagraj, India, with millions taking a dip in the Sangam, the confluence of the Ganges, Yamuna, and Saraswati rivers. Devotees from across India and the world converged for the 45-day event, which is considered to be a particularly auspicious one this year due to celestial alignments. The event is a major logistical challenge for the government, which has implemented several crowd-control measures and security measures to ensure the safety of the millions of pilgrims.