In Vedic Astrology, Sun rules the sign of Leo. The sun is known as ‘Aatma ka Karak’. The sun is indicator of father, our ego, honors, status, fame, the heart, the eyes, respect and power. The sun is strongest in the 10th house of your kundali. According to chandra kundali, sun always give positive result in 3,6,10 and 11th house and negative result in 1,2,4,5,7,8,9 and 12th house.