The Mahakumbh is a major Hindu festival that occurs every 12 years at four sacred riverbanks in India: Haridwar, Allahabad, Nashik, and Ujjain. It is one of the largest religious gatherings in the world, attracting millions of pilgrims who come to bathe in the holy rivers to cleanse their sins and attain spiritual merit. The festival is marked by various rituals, including the ceremonial bathing known as snan. The timing of the Mahakumbh is determined by astrological calculations, aligning with specific planetary positions. Each location hosts the event in a cycle, making it a significant occasion for devotees and a vibrant display of faith and culture.