Mata Mahagauri

The eighth day of Navratri or the third day of Durga Puja, Maha Ashtami, celebrates Maa Durga's victory over the buffalo demon Mahishasura. People worship Maa Mahagauri on this day, who is known for bestowing her devotees with wealth and an opulent lifestyle, and removing all their sufferings. Praying to Maa Durga during Ashtami can help rid one of all their problems and sins. Ashtami fast also holds significance as it brings prosperity and luck.
In some parts of India, people also perform Astra Puja during Ashtami. Many devotees consider it an auspicious day to pray to their tools. Additionally, Maa Durga's weapons are worshipped as symbols of female strength.
Like Maa Shailputri, she mounts a bull, and because of that, she is called Vrisharudha. She has four hands - while one hand on the right side carries a Trishul and the other stays in Abhaya Mudra, she holds a Damaru in one left hand and keeps the other in Varada Mudra. The Goddess is often compared with a conch, the moon and the white flower of Kunda because she has a fair complexion. She is also known as Shwetambardhara, as she always wears white clothes. She symbolizes purity, serenity and tranquillity.