Chapel of St. Catherine is located to the west of Church of St. Francis of Assisi. This church is built out of laterite blocks. There is only one plain altar on its chapel inside the church. There are two towers, standing on the either sides of the façade.

Like all Goan churches, this church was also constructed during Portuguese regime. Afonso de Albuquerque got this chapel built in 1510 in the memory of the event of entering the city of Old Goa on St. Catherine’s day. Then in 1550, chapel was enlarged by the Governor George Cabral. He placed an inscribed slab which read like this "Here in this place was the doorway through which Governor Afonso de Albuquerque entered and took this city from the Mohammadans on the day of St. Catherine in the year 1510 at the expenses of his Highness." This chapel was built where the gates of city stood under the Muslim regime.

In 1534, the Chapel was given the status of a Cathedral by the Pope Paul III. It remained as it is until a new cathedral was constructed.

Gorgeous Chapel of Catherine reflects marvelous renaissance elements. The church is counted among those churches of Goa which are protected by the Archeological Survey of India. Everything belonging to the church is imbued in medieval aroma. Tall three storied façade of the church is flanked by the squared towers. A statue of St. Catherine is placed in the semicircular niche on the top of window. Sacred hall of the church wears a plain look with a cruciform shape with a square apse in the centre.

The chapel was restored in 1951 on account of its huge popularity. It was designed by the renowned and experienced Portuguese architect Baltazar de Castro. He gave special attention to the vault and sacristy. You can see four crosses placed over the church roof while you walk inside the nave. There is Gothic cross over the altar.

India Goan Churches are among the most creatively designed churches which have stood the testimony of the time.