Rajju porutham indicates the strength and length of married life and marital happiness. If both that is the boy and the girl are in the same Rajju it is said to form Rajju dosham. This is not good as Rajju dosham brings problems related to health of the couple, financial problems, children problems, of course depending upon which of the Rajju dosham is there. There are rules which are known as Rajju Dosha exceptions. When there is an exception then the dosha is considered as not applicable. Therefore before marriage it is very important to check if Rajju dosha falls under these exceptions or not.