Connected with many institutions and organisations interested in the study of history and culture, he was executive member of the Kerala History Association (1975-90), Kerala Government Advisory Board of Archaeology (1975-82), University Senate, University Statutory Finance Committee, Kerala Sahitya Academy...

He has been recently elected vice-president of the Church History Association of India at the 13th Triennial of CHAI, Old Goa, 005. He is also an executive committee member of the Expert Committee for the study of the Churches in Kerala, Directorate of Census Operations, Kerala (Ministry of Home Affairs, New Delhi) and a member of the Governing Body of the Christian Chair of the University of Calicut.  

He was also the national vice-president of the Newman Association of India-Pax Romana (1964-72), founder director of the Institute for Lay Leadership Training (1967-1999), founder director and curator of the Christian Cultural Museum (from 1980), member of the (Arch)diocesan Pastoral Council (from 1978), president of Kalasadan (1984-1992) ...He has to his credit a large number of publications, research papers, articles, radio talks and TV programmes. His research activities and lectures have taken him to more than 20 countries in 4 continents. At present he is engrossed in the work of completing the Christian Encyclopedia, and the Church History Classics, and in setting up a comprehensive Indian Christian Museum. While not traveling in connection with one of these projects he is to be found at the ancestral family seat in Ollur, browsing in his huge library of rare books or pottering around the orchard. Detective stories and Parippu Vada are major weaknesses.

A SARAS publication : INDIAN CHURCH HISTORY CLASSICS