Claim: Among the three Diocesan Metropolitans that were assigned in  Madras Orthodox Diocese, H.G. Zachariah Mar Dionysius served the longest time from 1979 to 1997 compared to the two that served for less than 13 years.
Evidence: The present diocese was formed on 1979 and the Diocesan Metropolitan was the late H.G. Zachariah Mar Dionysius. 1979 1997 H.G. Zachariah Mar Dionysius 1997 2009 H.G. Dr. Yakob Mar Irenaios 2009 Present H.G. Dr. Yuhanon Mar Dioscoros