Why is Prayagraj considered significant for Asthi Visarjan?

Prayagraj, formerly known as Allahabad, is considered one of the holiest cities for performing Asthi Visarjan due to the presence of Triveni Sangam. It is also known as Teerthraj. The confluence of the Ganges, Yamuna, and Saraswati rivers is believed to have purifying powers, making it an ideal place for the ritual. The act of immersing ashes here is thought to help the soul attain peace and liberation.