Mahamrutyunjaya Mantra is the most powerful mantra and is chanted to achieve better mental and physical health. The mantra with beeja mantra is further classified in two main types 1) Ek Pranav Mahamrutyunjaya Mantra & 2) Shat' (six) Pranav Mahamrutytyunjaya Mantra as under.
Mahamrutyunjaya Mantra : Ek (single) Pranav
ll Om Trayambakam Yajamahe Sugandhim Pushtiwardhanam ll
ll Urwarukmivabandhananmrutyor Mukshiryamamrutat ll
Mahamrutyunjaya Mantra : Shat' (six) Pranav
ll Om Houm Jum Saha; Om Bhuhu Bhuvar Swaha ll
ll Om Trayambakam Yajamahe Sugandhim Pushtiwardhanam ll
Urwarukamivabandhananmrutyor Mukshiryamamrutat ll
ll Om Swaha Bhuvar Bhuhu; Om Saha Jum Houm Om ll