Sthree Deergha Porutham refers to the star relationship considered for the well-being and long married life of the woman. The word Sthree means woman and Deergha means long or lasting. In astrology, this porutham is observed by measuring the distance between the bride’s star and the groom’s star among the 27 birth stars. When the star distance follows the accepted rule, it is believed to support stability, comfort, and harmony in the woman’s married life.