Story of Maa Brahmacharini.
As per Hindu Scriptures, Goddess Bramacharini took birth as the daughter of King Himalaya known as Parvati, she then left her home and strictly penanced to get Lord Shiva as her husband. First thousand years, she survived on fruits, flowers then she survived on herbs for another thousand years and for another thousand years, she ate only broken leaves of Bilva Patra. After this she left food, water and survived for another thousand years. After seeing the dedication of Goddess Parvati , all gods and saptarishis blessed her to get married to Lord Shiva and named her as Aparna.