The procedure for the use of this mantra is –
In the period of Ashlesha Nakshatra [Alpha Hydrae constellation] make a nail from the bone of a snake.
Taking this bone in your hand you have to chant this mantra 7 times all the while remembering the name of your enemy.
Then bury this bone in the residence of your enemy.
Om shurshure swaha ll
ॐ शुरशुरे स्वाहा ll