Vailankanni (Velankanni) is a pilgrim centre located in the ______ district of Tamil Nadu.

Nagapattinam

The correct answer is Option (1) - Nagapattinam

Vailankanni (also known as Velankanni) is a town in the Nagapattinam district of the Indian state of Tamil Nadu. It is a renowned Catholic pilgrimage center, famous for the Basilica of Our Lady of Good Health, also known as the "Lourdes of the East". The town is situated on the Coromandel Coast of the Bay of Bengal, about 12 kilometers south of Nagapattinam.

The history of Vailankanni dates back to the 16^th century when it was a small fishing village. According to local legend, Mother Mary is said to have appeared to a young boy carrying milk and asked for some to quench the thirst of the infant Jesus. In gratitude, she promised to grant the wishes of devotees who prayed to her at that spot. Over time, the shrine at Vailankanni grew in prominence, and the Basilica was constructed to accommodate the increasing number of pilgrims.

Today, Vailankanni is not only a religious center but also a popular tourist destination, known for its beautiful beaches and serene coastal ambiance. The shrine continues to be a symbol of faith and devotion for millions of people, making Vailankanni a significant cultural and spiritual landmark in Tamil Nadu.