1922 - The state of Assam (the present NE India with its seven states of Assam, Meghalaya, Arunachal Pradesh, Nagaland, Manipur, Mizoram and Tripura) was entrusted to the Salesians of Don Bosco. The first band of Salesian missionaries, led by Fr. Louis Mathias reached Shilllong on January 1922. The Catholic population of NE India at that time was less than 5000.
Growth and Development
1926 The first province of Salesian India the province of Calcutta with Fr. Louis Mathias as the first provincial is canonically erected.
1932 - The diocese of Shillong (for the entire NE India) is established with Msgr. Louis Mathias as its first Bishop, while Msgr. Stephen Ferrando is appointed as the bishop of Krishnagar.
1935 Msgr. Stephen Ferrando is appointed as the second bishop of Shillong on the transfer of Msgr. Louis Mathias to Madras-Mylapore
1951 Fr. Orestes Marengo is ordained as the first bishop of the second diocese of NE India, Dibrugarh, which is carved out from the diocese of Shillong
1959 The Province of Guwahati for Northeast India is erected with Fr. Antnony Alessi as its first provincial.
1964 Msgr. Orestes Marengo of Dibrugarh is transferred to Tezpur, bifurcated from the diocese of Shillong, as its first bishop. Fr. Hubert DRosario is appointed as the second bishop of Dibrugarh.
1969 Shillong is raised to the status of a Metropolitan See. Msgr. Stephen Ferrando retires. Msgr. Hubert DRosario, bishop of Dibrugarh, is transferred to Shillong as its first Archbishop. Msgr. Robert Kerketta is nominated as the third bishop of Dibrugarh.
1973 Msgr. Orestes Marengo is appointed as the Apostolic Administrator of the new diocese Tura, bifurcated from the Shillong Archidocese. Its first bishop will be Msgr. George Mamalassery, a diocesan priest, ordained as bishop in 1979.
1973 Fr. Abraham Alangimattathil is ordained as the first bishop of the new diocese of Kohima-Imphal, a region formerly under Dibrugarh.
1981 Fr. Thomas Menamparampil is ordained as the fourth Bishop of Dibrugarh
1982 The Province of Guwahati is divided to form a new province of Dimapur with Nagaland, Manipur, Upper Assam and Arunachal forming its territory. Fr. Mathew Pulingathil is its first provincial.
1984 Fr. Mathai Kochuparambil is ordained as the first bishop of the new diocese Diphu, bifurcated from the diocese of Shillong.
1990 Msgr. Tarcisius Resto is appointed as the auxiliary bishop of Shillong.
1992 Msgr. Thomas Menamparampil sdb is appointed as the first bishop of the new diocese of Guwahati, carved out from the diocese of Shillong, Tezpur and Tura. He is appointed as its first Archbishop in 1995. Fr. Joseph Aind is ordained as the fifth bishop of Dibrugarh.
1995 Msgr. Tarcisius Resto takes over as the second Archbishop of Shillong
2000 Fr. Dominic Jala is ordained as the third Archbishop of Shillong
2002 Eighty years since the arrival of the Salesians in Northeast India. Through the hard work of the pioneering missionaries and their followers, the Church in the region has witnessed an unprecedented growth. From a prefecture apostolic in 1922, there are now three Archdioceses, and 8 dioceses. The congregation has given to the Church in Northeast India 10 bishops.