All this Mantra are Vedic by chanting this mantra you will see the difference in your life. If you are trying to start his mantra start in auspicious day like amavasya, purnima, sankranti,shivrarti, ashtami, navami & navarati on early on morning before 7.30 am on brahma muhurta timing its important how you start effect also defend on that try to continue same way at least for 41 days. Daily 1 Mala, 3 Mala, 5 Mala, 11 Mala or 21 Mala defend on you use Rudraksha Mala for Japa. You can see the difference in your life. Positive effect will be on your life.
Maa Durga Mantra
Dum
Om Durgayei Namaha
Om Dum Durgayei Namaha
Om Hreem Dum Durgayei Namaha
Om Hreem Dum MahaDurgayei Namaha
Om dukha hantraya namah
Chamunda Mantra
Om Aim Hreem Klim Chamundaye Viche
Mangala Gowri
Sarva Mangala Mangalye Shive Sarvaartha Sadhikey Sharanye Trayambakey Gowri Narayani Namostutey
Bhadarakali Mantra
Om Jayanti Mangala Kali Bhadrakali Kapalini Durga Kshama Shiva Dhaatri Svaha Svadha Namostutey
Om Kali Mahakaali Kalike Paapharini,Sarva Vighna Hare Devi Narayani Namostute
Om Hraum Kali Mahakali KiliKile Phat Svaha