Mauni Amavasya occurs on the 15th day of the dark fortnight of Magh (January-February). It is derived from the word Muni, literally means an ascetic who practices silence. Mauni Amavasya is believed to be the day of conjunction of the sun and the moon. Fasting is observed on this day. The devotees do not talk to each other during the observance. It is considered highly meritorious to bath in
Triveni Sangam on this day. Mauni Amavasya is of special significance when it falls on a Monday.
