Se Cathedral, located in Old Goa, holds the distinction of being the largest church in India and stands as a majestic symbol of Portuguese colonial architecture and Christian heritage in the region. Originally built of mud, stones, and straw in 1510, the church was dedicated to St. Catherine to mark the Portuguese victory over the Muslim rulers of Goa on her feast day. In 1538, with the establishment of the Diocese of Goa, the church was elevated to the status of a Cathedral. The grand structure that stands today was commissioned by Portuguese Viceroy Dom Francisco Coutinho, Count of Redondo, during his tenure from 1561 to 1564.

Construction of the Cathedral began in 1562 and spanned nearly 90 years, reaching completion in 1652. The Se Cathedral’s front façade, including the cross, rises to a height of approximately 115 feet, with a breadth of 100 feet. The overall length of the church is 250 feet, and its breadth is about 181 feet. Architecturally, the exterior showcases a blend of Tuscan and Doric styles, while the interior is adorned in a rich Mosaic-Corinthian style. This monumental church remains a testament to Goa's religious history and colonial past, drawing pilgrims and visitors from across the world.