You can do this Shabar mantra chanting for 11, 21, 31, or 41 days, the put and time of mantra chanting need to be the exact same for the amount of days you wish to do sadhana. You should use Rudraksha or Tulsi rosary to chant the mantra. It https://vashikaran30628.bloggerchest.com/32265699/5-simple-statements-about-most-powerful-sarv-karya-sidh-shabar-mantra-karya-siddhi-shabar-mantra-most-powerful-shabar-mantra-explained