Magh Purnima or Magha Pournami, also known as Maha Maghi, is one of the auspicious Pournami days for Hindu devotees. Purnima is considered as significant in terms of spiritual practice and performing religious rituals. Samudra Snan or Punya Nadi Snanam (holy dip in holy waters) on Maha Maghi is highly meritorious deed. It is auspicious for Snana, Daana, Japa, and Parayana.
On Magh purnima day, along with Ishta Devatas (favorite Gods), Goddess Parvati Devi is worshipped. Bruhaspati is the God for Magha or Makha or Magham Nakshatra (birth star constellation), hence in some communities Brihaspati is also worshipped.
When Guru or Brihaspati enters into Simha Rasi, Maha Maghi Utsavam is held jubilantly at Kumbakonam in Tamil Nadu. At Hamsaladeevi Venugopala Swamy Temple in Andhra Pradesh, Magha Pournami Utsavam is celebrated with utmost gaiety. Hamsaladeevi confluence is called as Triveni Sangamam where the River Krishna merges into the Sea Bay of Bengal.
Tila Daanam (donating sesame seeds), Homam with sesame seeds, and naivedya prepared with Til seeds and offered to Gods. Devotees believe that reciting and donating the Brahmavaivartha Purana is highly meritorious.
Magh Purnima snan is the fourth auspicious bath in Kumbh Mela. Makar Sankranti Snan, Mauni Amavasya Snan and Basant Panchami Snan are the other three auspicious bathing days observed before Magh Purnima snan.