Why is Prayagraj a sacred city for Hindus?

Prayagraj is considered a sacred city for Hindus primarily because it is situated at the confluence of the Ganges and Yamuna rivers, joined by the mythical Saraswati river. This confluence, known as the sangam, is regarded as an especially holy site for Hinduism.1234

The city’s religious significance is highlighted by the following:

• Kumbh Mela: Prayagraj is one of the four sites that host the Kumbh Mela, the world’s largest public gathering and a highly sacred pilgrimage. This festival occurs in a 12-year cycle, with the timing determined by specific astronomical positions of the Sun, Moon, and Jupiter.23
• Ritual Bathing: The confluence serves as a major site for tirthas (pilgrimage sites), where hundreds of thousands of devotees gather annually to immerse themselves in the river, a practice believed to hold deep spiritual significance.4

The site has maintained its religious importance since ancient times, when it was known as Prayag, a city comparable in fame to Varanasi and Haridwar.1