The National Shrine Basilica of Our Lady of Ransom aka Vallarpadam Basilica located in Vallarpadam, a suburb in Ernakulam, in the city of Kochi, is a minor basilica and a major Christian pilgrimage centre in India. Around 5 million people visit the basilica every year. People from all parts of the world irrespective of caste or creed go to the church to seek the blessings of the Blessed Virgin Mary, mother of Jesus, popularly known as "Vallarpadathamma".

Vallarpadam is one among the group of islands, that form part of Kochi, in the state of Kerala, India. It is situated in the Vembanad Lake, locally known as The Kochi Lake and has a population of over 10,000. Vallarpadam is one of the two islands, the other being Willingdon Island, around which the Port of Kochi is situated. The International Container Transshipment Terminal of the port is situated entirely in Vallarpadam island. Vypin island lies on its west side and Mulavukad island lies to its east.