Every year in the fall, the Hindu holiday of Navratri is observed for nine nights. In different parts of the Indian cultural world, it is celebrated and observed for different reasons. There are four seasonal Navratris, according to theory. In the Navratri tale, Goddess Durga and the formidable demon Mahishasura engaged in a huge battle. An avatar of “Goddess Durga” is worshipped on each day of Navratri every year to commemorate the day she defeated Mahishasura and the ultimate triumph of “Good over Evil.”