The no moon day or Amavasi falling on Monday or Somvar is known as Mrityunjaya Amavasya in some regions. The day is highly auspicious for worshipping Lord Shiva and taking bath in sacred rivers.
Somwar or Monday is the most auspicious day worship Lord Shiva in a week. When Amavasya falls on Monday it becomes doubly auspicious.
The day is also chosen to offer Shradh and Tarpan rituals to dead ancestors and parents.
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