What is the Kumbh Mela, and why is it held in four cities periodically? What is Ardh Kumbh and Maha Kumbh? What is the origin of this pilgrimage festival?

This year, the Maha Kumbh, or Poorna Kumbh, is being held in Prayagraj. Celebrated every 12 years, it is one of the world's largest religious events

As the festivities continue in grandeur and pomp, another ritualistic bath takes place on the 12 of February, aligning with the Maghi Purnima tithi. On the 26th of February, with the celebrations of the Maha Shivaratri, the Kumbh Mela concludes, marking the end of the greatest religious gathering.

Each date holds unique significance, with the Shahi Snans being the highlight as they feature grand processions by ascetics and saints.

Millions of Hindu pilgrims gathered on Tuesday at the confluence of the Ganges, Yamuna and Sarasvati rivers to take part in the first holy bath of the Kumbh Mela, the world's largest religious gathering.