The Maha Kumbh Mela began in Uttar Pradesh's Prayagraj this morning, with more than 50 lakh people taking the first holy dip at Sangam, the point where the Ganga, Yamuna and mythical Saraswati rivers meet. Dubbed the largest gathering of humanity in the world, the millennia-old Kumbh Mela is expected to bring more than 40 crore people to Prayagraj, which is more than the population of the US and Russia.