Dashain (दशैं) is the 15-day national (religious) festival of Nepal, It is the longest and the most auspicious festival in the Nepalese annual calendar, celebrated with great rejoice by Nepalese of all caste and creed throughout the globe. It is not only the longest festival of the country but is also the one which is most anticipated. The festival falls around September–October, starting from the bright lunar fortnight and ending on the day of full moon. Dasain is also popularly referred to as Bada Dasain, Dashera, Vijaya Dashami etc.

Throughout the country the goddess Durga in all her manifestations are worshiped with innumerable pujas, abundant offerings and thousands of animal sacrifices for the ritual of holy bathing, thus drenching the goddess for days in blood. This festival is also known for its emphasis on the family gatherings, as well as on a renewal of community ties. People return from all parts of the world, as well as different parts of the country, to celebrate together. All government offices, educational institutions and other offices remain closed during the festival period.