Mangal (Mars) stands in the 1st, 2nd, 4th, 7th, 8th or 12th house counted from your lagna, Moon or Shukra (Venus): what households call Mangal or Kuja dosha. It brings heat into partnership — quick words, impatience and friction at home or in marriage — felt most in Mangal's dasha and sub-periods, and strongest when counted from Shukra. It is a matter for matching both charts, not a verdict on anyone: the same Mangal in both partners' charts cancels it.
