The Saint Teresa Festival is observed in Mahé, Puducherry, India, every year on October 15, coinciding with the feast of Saint Teresa of Ávila. This festival is one of the most significant events in the district, celebrating the life and contributions of Saint Teresa, a prominent Spanish mystic and religious reformer. The festival lasts from the second to the fourth week of October, drawing Christian missionaries and visitors from various parts of India, particularly from states with substantial Christian populations like Kerala, Karnataka, and Tamil Nadu. The event is centered around Saint Teresa’s Shrine, which was originally dedicated to Saint John of the Cross and has undergone several renovations since its establishment in the 18th century. The festival is popular among people of all religions and castes, highlighting its inclusive nature. Various customs and activities take place during the festival, fostering a sense of community and reverence for the saint.