Mahalaya is celebrated at the beginning of the Durga Pooja festival, which is observed in the states of Karnataka, Odisha, Tripura, and West Bengal. According to Hindu mythology, it is believed that on this day Brahma, Vishnu, and Maheswar created Goddess Durga to defeat the demon king Mahishasura.It is the last day of Pitru Paksha aka Sarva Pitru Amavasya. History …