You can do this Shabar mantra chanting for 11, 21, 31, or 41 times, the position and time of mantra chanting must be a similar for the amount of days you ought to do sadhana. You may use Rudraksha or Tulsi rosary to chant the mantra. It is mandatory https://your-directory.com/listings13203063/a-simple-key-for-most-powerful-sarv-karya-sidh-shabar-mantra-karya-siddhi-shabar-mantra-most-powerful-shabar-mantra-unveiled