Geevarghese Chundevalel was born on 2 February 1928 in the family of the Malankara Orthodox priest Jacob Chundevalela. Geevargheses family adopted Catholicism when he was in high school. In 1943 he entered the junior seminary of the Archieparchy of Tiruvalla, after which he was sent to the Papal Seminary in Kandy, Sri Lanka for philosophical and theological education. Timotheos was ordained on 24 August 1953. He continued his education in Rome at Gregorian University. In 1967 he was appointed rector of the seminary, where he served for thirteen years. In 1980 became vicar of the Cathedral of Saint John in Tiruvalla. In 1984 Isaac Mar Yoohanon appointed him Bishop of Tiruvalla and made him protochancellor of his diocese. After the death of Isaac Yoohanon in March 1987 was elected administrator of the diocese and offered to the Vatican as a candidate for the episcopal office. On 6 August 1988 after approval of his nomination he was ordained Bishop by Benedict Mar Gregorios. On 29 March 2003 the Holy See accepted his retirement to a small village near Tiruvalla.