Kurialacherry was a member of the Syro-Malabar Catholic Church, had his ordination in May 1899 from Cardinal Cassantha, and was bishop of what would become the Archdiocese of Changanacherry.

[1] He is also known for establishing the prestigious SB College Changanasserry, one of the oldest Institutions of Higher Education in Kerala, in 1922.

After his primary education, Thomas joined St.Ephrem school in Mannanam.It was during this time that he felt a strong desire to become a priest.

Mar Kurialacherry was an apostle of ecumenism; as a man with a wider perspective he worked for the unity of various Christian communities.

In the silver jubilee year of his ordination bishop Thomas Kurialacherry went to Rome for his ad limina visit.

[1] His mortal remains were brought back to his homeland in 1935 and interred in St. Mary's Metropolitan Cathedral, Changanassery and in 2014 they were transferred to the newly built Marthmariam kabaridappalli.

On 2 April 2011 Pope Benedict XVI, in an audience with Cardinal Angelo Amato, Prefect of the Congregation for the Causes of Saints, approved a statement saying that Bishop Kurialachery had lived a life of heroic virtue.