Kharna, Day 2 of Chhath Puja, involves a day-long fast followed by a sunset feast of Rasiya Kheer and puris. This day is all about purification, family unity, and preparing for the main Chhath rituals.Kharna, Day 2 of Chhath Puja, involves a day-long fast followed by a sunset feast of Rasiya Kheer and puris. This day is all about purification, family unity, and preparing for the main Chhath rituals.