You can do this Shabar mantra chanting for 11, 21, 31, or 41 times, the area and time of mantra chanting should be the same for the number of days you should do sadhana. You should use Rudraksha or Tulsi rosary to chant the mantra. It is actually mandatory https://jaredfkmlj.bloginwi.com/66140904/5-easy-facts-about-most-powerful-sarv-karya-sidh-shabar-mantra-karya-siddhi-shabar-mantra-most-powerful-shabar-mantra-described