As a bishop and Archbishop of Kottayam, Kunnacherry took initiative to establish many churches, charitable, and welfare institutions in various parts of Kerala.

He was born at Pazhuthurthu near Kaduthuruthy, Kerala State, India, as the son of Joseph and Annamma in Kunnacherry family on 11 September 1928.

His funeral services were officiated by Mar George Alencherry, the major archbishop of the Syro-Malabar Church, at Christ the King cathedral Kottayam where he was buried on 17 June 2017.

After high school studies, Kunnacherry joined St. Stanislaus Minor Seminary at Sacred Heart Mount, Kottayam in 1946.

[1] After Kunnacherry's ordination as priest and return from Rome, Bishop Mar Thomas Tharayil appointed him as the Chancellor of the Diocese of Kottayam.

He also served as bishop's secretary, Cathedral assistant, and Editorial Board member of Apna Des and Sacred Heart Monthly (publications of the diocese) from 1960-1962.