What it is: Mars (Mangal) placed in the 1st, 2nd, 4th, 7th, 8th or 12th house from Lagna, Moon, or Venus creates Mangal Dosha.
Effect: Mars injects intensity and aggression into the houses it occupies — when those are marital houses, it can create friction in relationships.
Important: ~40% of people have some degree of Mangal Dosha. Cancellation conditions, chart context, and partner's chart all matter far more than the bare fact of dosha.
