Nadi Dosh

Occurring during marriage compatibility test, Nadi dosh happens when a couples’ nakshatras fall in the same nadi or they have the same nakshatra under the same nadi. This produces a severe astrological flaw, affecting the health of their future children. 

The severity of this flaw varies. 

Being of a general nature when the nakshatras of the couple fall under the same nadi. Causing difficulty in having healthy children.

And being of a grave nature, resulting in Naga Nadi. Where the couples’ identical energies clash and cause a fear of poison, ill-health for one of the partners, and suffering for their children.