Second day of Navaratri is dedicated to Goddess Brahmacharini in most parts of India. ‘Brahma’ here refers to the meditative aspect of Brahmacharini and is always depicted as pious women or Sannyasin. This form Durga is two-armed and carries a rosary and sacred water pot (Kamandalu). Goddess Tara and Goddess Chamunda are also worshipped on the day in western region and some parts of North India. In many regions the first three days of Navratri is dedicated to the worship of Goddess Durga.
Brahmacharini is associated with the pious form of Goddess Shakti. She is believed to be that aspect of Mother Goddess, which was present in Sati and Goddess Parvati, when they both did intense austerities to get Lord Shiva as husband.
In some regions, Goddess Chamunda form of Durga is worshiped on the second day. In this form she is believed to have killed the demons Chanda and Munda.
Another form of Durga worshipped is that of Goddess Tara.