Kali Puja, also known as Shyama Puja or Mahanisha Puja, is a festival originating from the Indian subcontinent, dedicated to the Hindu goddess Kali. It is celebrated on the new moon day (Dipannita Amavasya) of the Hindu calendar month of Ashwayuja (according to the amanta tradition) or Kartika (according to the purnimanta tradition). The festival is especially popular in the regions of West Bengal, Mithila, Odisha, Assam, and Tripura, as well as the town of Titwala in Maharashtra, along with the neighbouring country of Bangladesh.