Is Maṅgala doṣa (being “manglik”) real? Must a manglik marry a manglik?
it is a real rule in matching practice, but it is very common, often cancelled, and never a reason for fear on its own.
Maṅgala doṣa (kuja doṣa) is usually defined as Mars sitting in the 1st, 2nd, 4th, 7th, 8th or 12th house, counted from the lagna and often also from the Moon and Venus. Count the possibilities and you will see that roughly half of all people are “manglik” by some rule — which already tells you it cannot mean disaster.
The idea is that a strong Mars brings heat and impatience into married life, so traditional matching pairs it with a similar Mars in the partner's chart, which is said to balance it. That is the origin of “manglik with manglik”.
But the doṣa is only one factor, and later texts and regional traditions list many cancellations. Compatibility of nature, values, health and family matters far more. Have both full charts seen by a careful astrologer instead of rejecting a match over one word.
Source: later Muhūrta and matching texts; modern practice · Houses 1, 2, 4, 7, 8, 12
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