What all should match for marriage?

Matching of 25 to 32 aspects is considered a very good match with the prospects of the couple assuring a very happy marriage. If 33 and more aspects match, then such pairing is considered the best on the earth and can give way to an excellent marital union for the individuals coming together.

Which nakshatra is not good for birth?

The survival of the child born under this is critical since Moola Nakshatra is the most malefic. Birth under Moola 1 is harmful to the father and under Moola 2 to the mother.