In Siddha Yoga, take this mantra with a whole betel nut and maintain it in front and chant 10 rounds of the mantra. ॥ॐ नमो महाशाबरी शक्ति मम अरिष्टं निवारय मम कार्य सिद्धं कुरु कुरु स्वाहाः॥ I've some major reference to some truly powerful tantrik in Kolkata or black magic https://johnnybdqbj.magicianwiki.com/1331581/new_step_by_step_map_for_matangi