You can do this Shabar mantra chanting for eleven, 21, 31, or forty one days, the location and time of mantra chanting need to be a similar for the volume of times you should do sadhana. You need to use Rudraksha or Tulsi rosary to chant the mantra. It https://brooksayuni.blue-blogs.com/39483776/detailed-notes-on-most-powerful-sarv-karya-sidh-shabar-mantra-karya-siddhi-shabar-mantra-most-powerful-shabar-mantra