The Cathedral, built more than 85 years ago, is the principal place of worship of the over 342,169 Catholics of the Shillong Archdiocese.

Described as modern Gothic, the Church building plan was approved on August 22, 1936 by the chairman of the Shillong Municipality, who was also the Deputy Commissioner of former United Khasi & Jaintia Hills District, Keith Cantlie.

The building stands on sand and has no direct connection with the underlying rock; the type of foundation was recommended since the region where Shillong is located is prone to severe earthquakes.

Located in the Laitumkhrah locality in Shillong, the Cathedral of Mary Help of Christians has high arches and stained glass windows.

Next to the grave, just in front of the statue of Mary and the Child Jesus, is another altar, where special nine-day devotions are held every month.