Rt. Rev.  Dr. Thomas Mar Theethos Episcopa was born on 10^th May 1959 at Adoor.  He belong to  Adoor Kannamkod Mar Thoma Parish. His school education was at  at Vadakkadathukavu Govt. UP School and Adoor Govt. High School. His Pre-Degree was from Kottarakkara St. Gregorios College and BSc Botany from Pathanamthitta Catholicate college,

He got degree in Theology from Kottayam Seminary, ordained as Kaseesa on 14^th June 1985 atb Kottarakara. He was raised as Thomas Mar Theethos Episcopa on 13^th August 2011 at the Holy Madbaha prepared at the Thiruvalla SCS ground.