Explanation:

Chhath is an ancient Hindu Vedic festival historically native to the Indian subcontinent, more specifically, the Indian states of Bihar, Jharkhand and Uttar Pradesh and the Madhesh region of Nepal. The Chhath Puja is dedicated to the Sun and Shashthi devi (Chhathi Maiya) in order to thank them for bestowing the bounties of life on earth and to request the granting of certain wishes. This festival is observed by Nepalese and Indian people along with their diaspora.