He Performed arduous tapas (austerities) within the banks of the lake named Haridra in the Saurashtra area. Due to this penance, Goddess Bagalamukhi manifested within the waters of the lake. Haridra indicates turmeric, that's why the many apparel and worship products related to Goddess Bagalamukhi are of a yellow hue. https://www.instagram.com/tantramantraaurvigyaan/reel/DA6ACEaONEJ/