About Mantra:

Aum Tryambakam Yajamahe
Sugandhim Pushti-vardhanam |
Urva - rukamiva Bandhanan
Mrtyor - muksheeya Maamritat ||

jaap it on Maha Shivratri

Om Namah Shivay
(We worship The Three-Eyed Lord Shiva who is naturally fragrant, immensely merciful and who is the Protector of the devotees. Worshipping him may we be liberated from death for the sake of immortality just as the ripe cucumber easily separates itself from the binding stalk i.e. “By your Grace, Let me be in the state of salvation (Moksha) and be saved from the clutches of fearful death and calamities”.)

--Method for attaining great and rare results from this Mantra:
Although even one round (ONE MALA-108 Mantra) of this mantra starts giving the desired results, but it is said that with the 41 days practice of 125000 mantras with faith and VIDHI the devotee (sadhaka) surely gets the Result.