Sudarshana Homam is the removal of all enemies & avoiding accidents, The desires of human beings are innumerable and they vary in nature. The yantra (a symbol embedded in metal) used in the Homam, will keep all negativity at a distance and bring in divine and auspicious energies
Sudarshana Homam is performed by invoking Lord Sudarshan followed by the chanting of Lord Sudarshan Mantra and then performing the homam and receive the blessings of Lord Sudarshan.
Maha Sudarshana Homam is performed for the purpose of gaining victory, health, and wealth. Sudarshana is the personification of the discus held by Lord Vishnu. It is representative of the all-pervading Cosmic effect. Sudarshana is one of the ’wrathful’ deities and is invoked along with Narasimha for protecting the spiritual aspirant from all negative forces that may be at work disturbing their lives and their dharma practice. 
 
Who should do this Homam: Maha Sudarshana Homam is performed for the purpose of gaining victory, health, and wealth? 
When you should do this Homam: Can be performed as per star signs any day, however, recommended doing the on a Pournamior Ekadashi Saturday.
Benefits of this Homam: This Homam benefits by providing victory, courage, and prosperity. It helps in bringing good health, happiness, and removing obstacles, and also protects from evil forces and black magic.