The diocese was formed in August 2010, announced by Catholicos Baselios Marthoma Didymus I through Kalpana No. 389/2010, dated 3 August 2010. It serves the church's parishes across coastal Karnataka.
Counts above reflect Orthodox-held institutions only; churches, chapels, and other properties currently under schismatic occupation are catalogued separately below and are not included in these totals.
7 districts, listed alphabetically.