Kalratri, is the seventh form of Navadurga. This four arm form of Durga rides a donkey. She dissipates darkness and bestows fearlessness removing all adversities; so she is also called Shubhankari - one who does good. She wears a flashy necklace and hold a thorn like weapon in one hand and is worshipped on the seventh day of 'Navaratri'.