You can do this Shabar mantra chanting for 11, 21, 31, or forty one times, the put and time of mantra chanting need to be precisely the same for the volume of days you want to do sadhana. You can use Rudraksha or Tulsi rosary to chant the mantra. https://vashikaran30738.anchor-blog.com/12649893/the-most-powerful-sarv-karya-sidh-shabar-mantra-karya-siddhi-shabar-mantra-most-powerful-shabar-mantra-diaries