Durga Puja or Durgotsava, reveres the goddess Durga and is widely celebrated in the Indian states of West Bengal, Odisha, Assam, Jharkhand, Bihar, Tripura and also Bangladesh and Nepal. The festival is observed in the Hindu calendar month of Ashvin which is September or October. The Pujo is a multi day festival - Mahalaya, Maha Shashti, Maha Saptami, Maha Ashtami (Durga Ashtami), Maha Navami and Vijaya Dashami (10th day of Victory).
Durga Puja festival marks the battle of goddess Durga with the buffalo demon Mahishasura, and her emerging victorious.The festival marks the victory of Good over Evil, but it also is in part a harvest festival that marks the goddess as the motherly power giving rise to all life and creation.Months before the start of Durga puja, communities & clubs build a stage called pandal. Though the primary goddess revered during Durga Puja is Durga, but her stage and celebrations feature other major deities of Hinduism such as goddess Lakshmi (goddess of wealth, prosperity), Saraswati (goddess of knowledge and music). A key text associated with Durga Puja observations is Devi Mahatmya, which is recited during the festival. Elaborate rituals like arati are performed and prasad is distributed after being offered to the gods. Durga Puja festival has also become the festival of reunion for friends and families.