This house belongs to Venus and Mercury, who provide the effect of Sun. If Mars is placed therein, the 7th house will be affected by Sun and Mars both, which ensures that the native’s ambition will be fulfilled. Wealth, property and family will increase. But if Mercury is also placed here alongwith Mars, very adverse results will follow regarding the things and relations represented by Mercury e.g., sister, sister-in-law, nurses, maid servant, parrot, goats etc. It would be better to keep away from them.
This house belongs to Mercury and Ketu. Both are mutual enemies and inimical to Mars hence Mars in this house will keep himself away from both. The native will be courageous, adventurous, lover of justice and powerful enough to set fire into water, highly benefited by the trade and business associated with Mercury. His pen will wield more power than the sword.
The 5th house belongs to the Sun, who is a natural friend of Mars. Hence Mars ensures very good results in this house. The sons of the native become instruments of wealth and fame for him. His prosperity increases manifold after the birth of sons. The things and relatives represented by Venus and Moon will prove beneficial in every manner his forefathers must have been a doctor or Vaidya.
The 3rd house is affected by Mars and Mercury, who provide brothers and sisters to the native i.e., he will not be the only issue of his parents. Others will be highly benefited from the native, but he will not be able to receive benefit from others. Humbleness will bring rewards.