The Pariharam for Chevva (Mars) must be done, if we find the following astrological positions. 1. The Placement of Chevva (Mars) in 1st, 2nd, 4th, 7th, 8th and 12th house from the lagna. 2. The Chevva (Mars) getting debilitated in the Kataka Rasi (Cancer sign). 3. The Chevva (Mars) becoming weaker in Navamsa and Dasamsa charts. 4. The Chevva (Mars) travesring in the 22nd start or 88th star path, counted from the person's Jenma Nakshatra. 5. The Chevva (Mars) getting very low counts from the Chevva Ashtavarga. 6. Those with Rishaba, Mithuna, Kanni, Thula, Makara and Kumbha lagna must also do pariharam. 7. Those who are born in the Mirugasirisa, Chittirai and Avittam Nakshatras. 8. Those who are born in Aswini, Magham and Moolam Nakshatras (VERY IMPORTANT) 9. Those who are in the midst of Chevva Mahadasa or Chevva Antardasa periods. 10. Those who has the combination of Chevva and Shani in the natal charts. 11. Those who has the association of Shani and Raghu wi