As per the Markandeya Purana, Durga Puja can be performed either for 9 days or 4 days (last four in sequence). The four-day-long Durga Puja is a major annual festival in Bengal, Odisha, Assam, Jharkhand and Bihar. It is scheduled per the Hindu luni-solar calendar in the month of "Ashvina", and typically falls in September or October. Since it is celebrated during Sharad (literally, season of weeds), it is called as Sharadiya Durga Puja or Akal-Bodhan to differentiate it from the one celebrated originally in spring. The festival is celebrated by communities by making special colourful images of Durga out of clay, recitations of "Devi Mahatmya" text, prayers and revelry for nine days, after which it is taken out in procession with singing and dancing, then immersed in water. The Durga puja is an occasion of major private and public festivities in the eastern and northeastern states of India.