Devi Chandraghanta
Chandraghanta is the third navadurga aspect of goddess Mahadevi. She is also known as Chandrakhanda, Chandika or Rannchandi. Her worship takes place on the third day of Navaratri. She is believed to reward people with her grace, bravery and courage. By her grace, all the sins, distresses, physical sufferings, mental tribulations and ghostly hurdles of the devotees are eradicated.
Mantra
ॐ देवी चंद्रघण्टायै नम:
Oṃ Devī Chandraghantaye Namaḥ
Dhyan Mantra
पिण्डज प्रवरारूढ़ा चण्डकोपास्त्रकैर्युता। प्रसीदम् तनुते महयं चन्द्रघण्टेति विश्रुता।।
Pindaja Pravarārudhā Chandakopāstrakairyutā Praseedam Tanutae Mahyam Chandraghantaeti Vishrutā.
Source:https://en.wikipedia.org/wiki/Chandraghanta