As explained above the Prayog has to be commenced when there are dark clouds hovering in the sky. The entire Mantra Sadhana has to be done under a Nirgundi Tree, known in the English language as the [Vitex negundo] Five-leaved chaste tree.
The Mahendra Yakshini Mantra has to be chanted 100,000 times in a fixed number of days [fixed number of Mantra Chants per day] in as little a number of days as possible. The preferred Counting Mala is the Rudraksha Mala.
Once the Mantra Chants are complete, the Sadhak has to perform a fire Havan and chant the Mantra 10,000 times while making offerings to the Havan. The Sadhak has to offer five items to the Havan, such as Rice, Honey, Pure Cow Ghee, Grains, Tulsi, Milk, Curds or any other popular Fire Havan Offering.
If successful in invoking the Mahendra Yakshini after the conclusion of the Mantra Experiment, the Mahendra Yakshini will gift the Sadhak five unique and rare items from the Patal Lok. Patal Lok is believed to comprise of Seven Lower Realms of the Universe and should not be confused with Hell, there is no such thing as Absolute Hell in the Hindu Religion, everything is relative in nature.
|Yakshini Mantra for Rare Items from Patal Lok|
Note- There is a known Yakshini known as the Mahendri Yakshini, believed to be immensely powerful. However, this is the Mantra Sadhana procedure, which I gathered from the Tantra. It is quite possible that this Sadhana is for the Mahendra Yaksha, the male counterpart of the Yakshini.
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