Durga Pooja, also known as Durga Puja, is one of the most significant and widely celebrated festivals in India, particularly in the states of West Bengal, Assam, Odisha, Tripura, Bihar, and Jharkhand. It honors Goddess Durga and her triumph over the buffalo demon Mahishasura, symbolizing the victory of good over evil. The festival typically takes place in the Hindu month of Ashwin (September-October) and lasts for ten days, with the last five days being the most significant.