[1] Ganga Dussehra takes place on Dashami (10th day) of the waxing moon (Shukla Paksha) of the Hindu calendar month Jyeshtha.

Ganga Dussehra is observed by Hindus mainly in the states of Uttar Pradesh, Uttarakhand, Bihar, and West Bengal, where the river flows.

Haridwar, Varanasi, Garhmukteshwar, Rishikesh, Allahabad, and Patna are the main locations of the celebrations,[2] where devotees gather at the banks of the Ganges and perform aartis (a religious ritual in which a light lamp is moved clockwise circularly in front of a deity as a part of prayer) to the river.

Devotees take a holy dip in the Yamuna at places like Mathura, Vrindavan, and Bateshwar, and give offerings of watermelon and cucumber.

[5] At the Dashashwamedh Ghat in Varanasi, several rituals such as deep daan (offering of floating diyas to the river) and maha aarti are conducted.