Bishop Emeritus Sanki John Theodore was the fourth Bishop-in-Karimnagar Diocese of the Church of South India.
After a two-year ministerial work, Theodore again studied from 1972-1974 enrolling for a postgraduate degree of Master of Theology[4] specializing in Old Testament under E. C. John G. M. Butterworth, and Gerhard Wehmeier, working out a dissertation entitled The concept of creation in the Book of Deutero-Isaiah[7] at the United Theological College, Bangalore.
[4] Theodore was part the pioneer group of postgraduate students who specialised in Old Testament comprising A. P. Chacko, Basil Rebera, G. Babu Rao, Nitoy Achümi, and Timotheas Hembrom.
In the resulting elections that were conducted by the Church of South India Synod, the name of John Theodore came into the panel of three probable Bishops for Karimnagar.
Bird Ryder Devapriam then Moderator of the Church of South India Synod announced the appointment of Sanki John Theodore as the fourth Bishop-in-Karimnagar.