Nadi is one of the important Kootas in matching making for the purpose of marriage in Vedic Astrology . Horoscope of every person shows his Nadi depending upon the placement of Moon in different Constellations or Nakshatras at the time of his birth. When a female and male have diffrent moon sign but they have same birth nakshatra, Nadi Dosh is said to be nullified in spite of both of them having same Nadi and if they have diffrents birth nakshatra and both of them have same and moon sign are also same Nadi Dosh is said to be nullified.

There are only three types of nadi :

(a) Adi (start)
(b) Madhya (middle)
(c) Antya (end)