Mahakali Yantra is used to safeguard from black magic, malevolent influences of the planet Saturn and wicked influences. According to the Swangam Tantra, Kali Tantra and Bhairab Tantra, this particular Yantra is known as Swanam Yantra, Kali Yantra, Mahakali Yantra or Bhadra Kali Tantra- Goddess Kali in a ferocious posture is the deity of this Yantra.

Special puja of this Yantra is performed on the 8th day of Chaitra, Asar, Shravan and Magh months of Vikrami year. This yantra confers satisfaction of wants, riches, comforts of life and is also used for Mohan Vashikaran purposes. A lot of Shakti or power is instilled in the Yantra after puja that can avert enemies from doing damage and keep them under control.

Mantra- "Om Kreem Kalikaye Namaha, Om Kapalinaye Namah"