In Astro Uncle we will tell you about the Budh Aditya Yoga . Irrespective of the lagna, conjunction of sun and mercury is called budhaditya yoga. Does not matter in which sign they are positioned. Pisces ascendant people if sun and mercury are sitting together in any house will have this yoga. However the actual benefit of the yoga will be felt only when both planets are strong and positioned in a favourable place without the influence of malefic planets.