It has 1800 students and 85 teachers and non teaching staff on a five-acre (2.0 ha) campus.

Candidus, an Italian missionary with the permission of Archdiocese of Verapoly with 31 students on 1 February 1892.

The land was donated by Maharaja of Cochin and it was known as 'Thumbaparambu' for the local people, as it was full of 'Thumba' (Leucas aspera).

In 1897, two Gothic styled buildings were constructed and it became an important landmark in Kochi city.

As the school celebrated its centenary in 1992, the two old Gothic buildings were refurnished by replacing the wooden first floor with concrete floor and constructed an open stage at the school ground in memory of Msgr.