Karmandir 
About
The Mahamrityunjaya Yantra is a yantra of Bhagwan Shiv as Mrityunjaya, 'the one who wins over death'. It goes with the Mahamrityunjaya mantra of the Rigveda (ॐ त्र्यम्बकं यजामहे…), which devotees chant as a prayer for good health, courage and peace, for themselves and for their loved ones. The story of the boy-sage Markandeya, who held on to the Shivling and was saved by Shiv from Yama, is told with this form of Shiv. The yantra has ॐ inside a five-pointed star at its centre, three rings of lotus petals, circles, and a square frame with four gates.
Parts of the yantra
Centre: ॐ inside a five-pointed star, drawn within a circle. Around it, a lotus of 8 petals, then two circles, a lotus of 16 petals, three circles, and an outer lotus of 8 large petals. Outside is the bhupura, a square of three lines with a gate on each side. On metal plates the petals carry syllables of the mantra and bija letters; in this drawing they are left plain.
How to use it
Keep the yantra in the clean place where you pray, upright as drawn, with one point of the star at the top. On Mondays, in the month of Shravan or on any quiet morning, offer water or a bel leaf, light a diya and rest your eyes gently on the ॐ at the centre. Chant the Mahamrityunjaya mantra 11, 21 or 108 times with a calm breath. When someone in the family is unwell, it can be part of your prayer for them, alongside the doctor's care.
ॐ त्र्यम्बकं यजामहे सुगन्धिं पुष्टिवर्धनम्। उर्वारुकमिव बन्धनान्मृत्योर्मुक्षीय माऽमृतात्॥
Om Tryambakam Yajamahe Sugandhim Pushtivardhanam, Urvarukamiva Bandhanan Mrityor Mukshiya Mamritat →
The letters written on the petals and inside the star differ from plate to plate and could not be read with certainty on the plates we compared, so they are left out. Some plates also add a trishul at each corner.
