Jala Poorna Trayodasi is observed on the previous day of Diwali (Deepavali) and Narak Chaturdashi. Jalapoorna Trayodashi 2025 date is October 18. Hindu homes on the day clean all the vessels in which water is stored. They are then filled with fresh water. Prayers are offered to Goddess Ganga. After the puja the water is considered to be the water from Ganga River . The water is used to take bath on the Naraka Chaturdashi and Diwali day. The ritual of taking bath with herbs from the water stored on Jal Poorna Trayodashi is known as Abhyanga Snana. A similar ritual that is observed by certain communities in Karnataka is known as Neer Thumba Habba . Jala Poorna Trayodasi: Symbolism, Meaning, and Importance Jala Poorna Trayodasi day holds deep symbolic and spiritual significance in Hindu tradition, especially in preparation for Naraka Chaturdashi and Diwali , and centers around the purifying and sacred nature of water. The Ritual: Cleansing and Sanctifying Water ...