What is significance of Maa Chandraghanta's worship on Day 3 of Navratri?

On the third day of Navratri, Hindu devotees worship Maa Chandraghanta, the third avatar of Goddess Durga. According to mythology, the sound produced by the bell on her forehead can expel negative energies and evil spirits. Those who worship Devi in this form get strength, courage, and protection from harm.