What is Mangal Dosha-All About Facts Related to Mangal Dosha

Primarily we need to understand how Mangal Dosha forms. When Mars occupies the 1, 4, 7, 8, 12 houses from Lagna during birth, then it give the arise of Mangal Dosha. In a same manner the potency of Mangal Dosha is also seen from Moon and Venus also.