Manglik Dosha is about Mars. If Mangal sits in the 1st, 4th, 7th, 8th, or 12th house, the chart is marked for मांगलिक दोष in classical marriage reading. That is the basic rule. But a proper मंगल दोष जांच does not stop there.
About 40-50% of people are Manglik when the chart is checked from Lagna, Moon, or Venus. So the real question is not only, क्या मैं मांगलिक हूं. The real question is whether the dosha stays active after sign strength, aspects, benefic support, and matching context are tested.
Most free tools are incomplete. They see Mars in one house, mark the result, and stop. A pandit does more. The chart should also be checked against 6 classical cancellation conditions, because Mars in its own sign, exaltation, mutual Manglik matching, Jupiter's aspect, benefic company, and other balancing factors can reduce or cancel the concern.
This check is built for that difference. It looks at the Mars houses first, then tests the cancellation rules that many quick tools ignore. That matters because fear around मांगलिक दोष can break a good proposal before anyone reads the horoscope properly. Sometimes the dosha is real. Sometimes it is already cancelled.
Use this page as a clear first answer. If the result needs more detail, the ₹99 dosha report explains severity, cancellation, and marriage impact in plain words.