Maa Mahagauri is represented wearing only white clothes signifying the extreme purity. She is seen sitting on a bull like Maa Shailputri. Maa Mahagauri is seen with four hands; her upper right hand is seen carrying a Trishul, lower right hand is in Abhaya Mudra, her upper left hand is carrying a Damaru, and lower left hand is in Varada Mudra.
Maa Mahagauri is the incarnation of Goddess Parvati who traded her luxurious life with her parents to do strict penance in order to win over Lord Shiva.
Maa Mahagauri is also known as a 'Vrisharudha', as she mounts on a bull. Due to her extreme fair complexion, which is compared to moon, and the white flower Kunda, she is also known as Maa Shwetambardhara.
In order to kill demons Shumbha and Nishumbha, Goddess Parvati removed her outer skin and revealed a dark skin; this avatar is known as Maa Kalaratri.
Maa Kalratri is the most vicious form of Goddess Parvati, as she represents her fierce side.
She is also known as Goddess Shubhankari because of her auspicious power to ward away demons.
She is seen riding on a donkey with her two lefts hands carrying a sword, & an iron hook, and her other two rights hands are in Abhaya and Varada Mudra; blessing her devotees.
Her complexion is dark and she blesses her devotees and wards away any negatives from their lives. Maa Kalaratri is the symbol of Goddess Parvati's aggressive and destructive manifestation.
