We married without checking Maṅgala doṣa — should we be worried now?
no. You are married; the doṣa is a matching guideline, often cancelled anyway, and your care for each other matters far more.
Maṅgala (Kuja) doṣa is noted when Mars sits in certain houses of the chart. By the most common rule a large share of all people have it, and classical jyotiṣa lists many cancellations — Mars in its own or exaltation sign, aspects from Jupiter, both partners having it, age, and more. It was meant as one consideration in choosing a match, not a curse that strikes after marriage.
If someone has frightened you after the wedding, please set the fear down. Fear itself harms a relationship more than any planet. Couples who wish to do something positive often choose Hanumān Cālīsā on Tuesdays, a Maṅgalavāra vrata, a Navagraha pūjā, or simply serving others together — these build strength and peace.
Be cautious of anyone who demands expensive rituals or says your marriage is in danger. Jyotiṣa is meant to guide, never to threaten. If your situation is specific, Ask Chiluka.
Many classical cancellations (parihāras) exist · Source: Jyotiṣa tradition
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