India's rich Christian legacy, influenced by centuries of missionary influence and regional customs, is explored on Christian spiritual tours. The UNESCO-listed Basilica of Bom Jesus, which houses the relics of St. Francis Xavier, and the Se Cathedral, which is best seen between November and March, are highlights of the former Portuguese province of Goa. Kerala's historic Christian heritage is evident in the year-round prosperity of the Syriac Christian communities in Kottayam and Thrissur, as well as in Kochi's St. Francis Church, India's oldest church constructed by Europeans.

Devotees flock to Tamil Nadu's San Thome Basilica in Chennai, which was constructed over St. Thomas's grave, and Velankanni's Basilica of Our Lady of Good Health, which is known as the "Lourdes of the East" and is a popular pilgrimage site, particularly during the feast of September. A glimpse of thriving indigenous Christian communities can be found in the Northeast, especially in Meghalaya and Nagaland. Shillong's churches are particularly noteworthy and are best visited in the spring or fall.