Usually performed on Amavasya (New Moon) or Tuesday nights.
In many Tantric traditions, the Kalia Masan mantra is used as a "Kavach" (shield). Practitioners believe that reciting these verses creates a psychic barrier that prevents negative influences from entering one’s home or body. Common Uses of the Rituals: kalia masan pdf
This explains the purpose of the mantra, the sage (Rishi) who revealed it, and the deity it is dedicated to. 2. Dhyana Mantra Usually performed on Amavasya (New Moon) or Tuesday nights