Roman Catholic Diocese of Dumka

History

• 17 January 1952: Established as the Apostolic Prefecture of Malda on territory split off from the Metropolitan Archdiocese of Calcutta
• 8 August 1962: Promoted as Diocese of Dumka
• Lost territory on 8 June 1978 to establish the Roman Catholic Diocese of Raiganj, to which the incumbent bishop moved
• Lost territory on 27 June to establish the Roman Catholic Diocese of Purnea

  Ordinaries

• Fr. Adam Grossi, Society of Foreign Missions

• Leo Tigga, Society of Jesus , later Bishop of split-off Roman Catholic Diocese of Raiganj
• Telesphore Placidus Toppo, later Coadjutor Archbishop of Ranchi , succeeding as Metropolitan Archbishop of Ranchi, Vice-President of Conference of Catholic Bishops of India, President of Conference of Catholic Bishops of India, Cardinal-priest of S. Cuore di Gesù agonizzante a Vitinia, President of Catholic Bishops’ Conference of India, Member of Commission of Cardinals overseeing the Institute for Works of Religion, President of Conference of Catholic Bishops of India, Member of Council of Cardinals for the Study of Organisational and Economic Problems of the Apostolic See
• Stephen M. Tiru, later Bishop of Khunti
• Julius Marandi