Auspicious for marriage, for learning, for ornaments, for buying vehicles and for music and the arts. Jaya class, so it is also good for contests and for the taking of vows.
Meaning
Tritiya is the third tithi, and its adhidevata is Gauri, the benign form of Parvati, which is why the tithi is associated with marriage and with the auspicious ornaments of a household. It is one of the most used tithis in the election of a wedding.