Durga Ashtami, observed on the eighth day (Ashtami) of the bright half in Ashwin, is one of the most important days of Durga Puja and Navaratri. It commemorates Goddess Durga's fierce warrior aspect, particularly her slaying of the buffalo demon Mahishasura. The day marks the height of divine power, courage, and justice.

Devotees celebrate with all-night vigils, special pujas, and recitation of Durga Saptashati. In many regions, Kumari Puja worships young girls as embodiments of the Goddess. Temples are decorated with lights, flowers, and offerings including red hibiscus flowers, jaggery, and fruits. Durga's fierce weapons are symbolically displayed. Community dances and cultural programs, such as Garba or folk performances, are held throughout the night. The energy of Shakti is invoked, invoking protection, courage, and feminine power.