Britannica
Sources used in this answer
Who became Mar Thoma I after the Coonan Cross oath?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Following the Coonan Cross oath in 1653, Archdeacon (Ramban) Parambil Tumi was installed as the first indigenous prelate of the Thomas Christians, taking the title Mar Thoma I.1