Date | Country | Change |
| 1887.05.20 |  India | Apostolic Vicariate of Kottayam (Syro-Malabar Rite) was established (from Archdiocese of Verapoly) |
| 1887.05.20 | India | Apostolic Vicariate of Trichur (Syro-Malabar Rite) was established (from Archdiocese of Verapoly) |
| 1896.07.28 | India | Apostolic Vicariate of Changanacherry (Syro-Malabar Rite) was established (from the suppressed Apostolic Vicariate of Kottayam) |
| 1896.07.28 | India | Apostolic Vicariate of Ernakulam (Syro-Malabar Rite) was established (from Apostolic Vicariate of Trichur and from the suppressed Apostolic Vicariate of Kottayam) |
| 1896.07.28 | India | Apostolic Vicariate of Kottayam (Syro-Malabar Rite) was suppressed (to Apostolic Vicariate of Trichur and to establish Apostolic Vicariate of Changanacherry and Apostolic Vicariate of Ernakulam) |
| 1911.08.29 | India | Apostolic Vicariate of Kottayam (Syro-Malabar Rite) was restored (from Apostolic Vicariate of Changanacherry and Apostolic Vicariate of Ernakulam) |
| 1923.12.21 | India | Apostolic Vicariate of Changanacherry (Syro-Malabar Rite) was promoted as Diocese of Changanacherry (became suffragan of Ernakulam) |
| 1923.12.21 | India | Apostolic Vicariate of Ernakulam (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Ernakulam (with suffragan sees Changanacherry, Kottayam and Trichur) |
| 1923.12.21 | India | Apostolic Vicariate of Kottayam (Syro-Malabar Rite) was promoted as Diocese of Kottayam (became suffragan of Ernakulam) |
| 1923.12.21 | India | Apostolic Vicariate of Trichur (Syro-Malabar Rite) was promoted as Diocese of Trichur (became suffragan of Ernakulam) |
| 1950.07.25 | India | Diocese of Palai (Syro-Malabar Rite) was established (from Diocese of Changanacherry and became suffragan of Ernakulam) |
| 1953.12.31 | India | Diocese of Tellicherry (Syro-Malabar Rite) was established (from Diocese of Calicut and became suffragan of Ernakulam) |
| 1956.07.29 | India | Diocese of Kothamangalam (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Ernakulam and became suffragan of Ernakulam) |
| 1959.01.10 | India | Diocese of Changanacherry (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Changanacherry (with suffragan see Palai) |
| 1962.03.31 | India | Ordinariate of Chanda (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Nagpur) |
| 1968.07.29 | India | Ordinariate of Chanda (Syro-Malabar Rite) was promoted as Apostolic Exarchate of Chanda (gained territory from Diocese of Amravati) |
| 1968.07.29 | India | Apostolic Exarchate of Sagar (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Bhopal and became suffragan of Bhopal) |
| 1968.07.29 | India | Apostolic Exarchate of Satna (Syro-Malabar Rite) was established (from Diocese of Jabalpur and became suffragan of Bhopal) |
| 1968.07.29 | India | Apostolic Exarchate of Ujjain (Syro-Malabar Rite) was established (from Diocese of Indore and became suffragan of Bhopal) |
| 1972.03.23 | India | Apostolic Exarchate of Bijnor (Syro-Malabar Rite) was established (from Diocese of Meerut and became suffragan of Agra) |
| 1972.03.23 | India | Apostolic Exarchate of Jagdalpur (Syro-Malabar Rite) was established (from Apostolic Prefecture of Raipur) |
| 1973.03.01 | India | Diocese of Mananthavady (Syro-Malabar Rite) was established (from Diocese of Tellicherry and became suffragan of Ernakulam) |
| 1974.06.27 | India | Diocese of Palghat (Syro-Malabar Rite) was established (from Diocese of Trichur and became suffragan of Ernakulam) |
| 1975.12.04 | India | Diocese of Tellicherry (Syro-Malabar Rite) lost territory to Diocese of Mananthavady |
| 1977.02.26 | India | Apostolic Exarchate of Bijnor (Syro-Malabar Rite) was promoted as Diocese of Bijnor |
| 1977.02.26 | India | Apostolic Exarchate of Chanda (Syro-Malabar Rite) was promoted as Diocese of Chanda (became suffragan of Nagpur) |
| 1977.02.26 | India | Apostolic Exarchate of Jagdalpur (Syro-Malabar Rite) was promoted as Diocese of Jagdalpur (became suffragan of Bhopal) |
| 1977.02.26 | India | Diocese of Kanjirapally (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Changanacherry and became suffragan of Changanacherry) |
| 1977.02.26 | India | Diocese of Rajkot (Syro-Malabar Rite) was established (from Diocese of Ahmedabad and became suffragan of Bombay) |
| 1977.02.26 | India | Apostolic Exarchate of Sagar (Syro-Malabar Rite) was promoted as Diocese of Sagar |
| 1977.02.26 | India | Apostolic Exarchate of Satna (Syro-Malabar Rite) was promoted as Diocese of Satna |
| 1977.02.26 | India | Apostolic Exarchate of Ujjain (Syro-Malabar Rite) was promoted as Diocese of Ujjain |
| 1978.06.22 | India | Diocese of Irinjalakuda (Syro-Malabar Rite) was established (from Diocese of Trichur and became suffragan of Ernakulam) |
| 1984.06.19 | India | Diocese of Gorakhpur (Syro-Malabar Rite) was established (from Diocese of Varanasi and became suffragan of Agra) |
| 1986.04.28 | India | Diocese of Thamarasserry (Syro-Malabar Rite) was established (from Diocese of Tellicherry and became suffragan of Ernakulam) |
| 1988.04.30 | India | Diocese of Kalyan (Syro-Malabar Rite) was established (gained territory from Diocese of Poona and became suffragan of Bombay) |
| 1992.12.16 | India | Major Archdiocese of Ernakulam–Angamaly (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Ernakulam) |
| 1992.12.16 | India | Metropolitan Archdiocese of Ernakulam (Syro-Malabar Rite) was renamed as Metropolitan Archdiocese of Ernakulam–Angamaly (lost territory to establish Major Archdiocese of Ernakulam–Angamaly) |
| 1995.05.18 | India | Diocese of Tellicherry (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Tellicherry (with suffragan sees Mananthavady and Thamarasserry) |
| 1995.05.18 | India | Diocese of Trichur (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Trichur (with suffragan sees Irinjalakuda and Palghat) |
| 1996.11.11 | India | Diocese of Thuckalay (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Changanacherry and became suffragan of Changanacherry) |
| 1999.04.24 | India | Diocese of Belthangady (Syro-Malabar Rite) was established (from Metropolitan Archdiocese of Tellicherry and became suffragan of Tellicherry) |
| 1999.06.23 | India | Diocese of Adilabad (Syro-Malabar Rite) was established (from Diocese of Chanda and became suffragan of Hyderabad) |
| 2001.02.16 |  USA | Diocese of Saint Thomas the Apostle of Chicago (Syro-Malabar Rite) was established (without ecclesiastical province) |
| 2002.12.19 | India | Diocese of Idukki (Syro-Malabar Rite) was established (from Diocese of Kothamangalam and became suffragan of Ernakulam–Angamaly) |
| 2005.05.09 | India | Diocese of Kottayam (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Kottayam |
| 2007.08.29 | India | Diocese of Bhadravathi (Syro-Malabar Rite) was established (from Diocese of Mananthavady and became suffragan of Tellicherry) |
| 2010.01.15 | India | Diocese of Mananthavady (Syro-Malabar Rite) lost territory to Diocese of Bhadravathi |
| 2010.01.18 | India | Diocese of Mandya (Syro-Malabar Rite) was established (from Diocese of Mananthavady and became suffragan of Tellicherry) |
| 2010.01.18 | India | Diocese of Ramanathapuram (Syro-Malabar Rite) was established (from Diocese of Palghat and became suffragan of Trichur) |
| 2012.03.06 | India | Diocese of Faridabad (Syro-Malabar Rite) was established |
| 2013.12.23 |  Australia,  New Zealand | Diocese of Saint Thomas the Apostle of Melbourne (Syro-Malabar Rite) was established (without ecclesiastical province) |
| 2015.08.06 |  Canada | Apostolic Exarchate of Canada (Syro-Malabar Rite) was established |
| 2016.07.28 |  England,  Scotland,  Wales | Diocese of Great Britain (Syro-Malabar Rite) was established (without ecclesiastical province) |
| 2017.10.09 | India | Metropolitan Archdiocese of Changanacherry (Syro-Malabar Rite) lost territory to Diocese of Thuckalay |
| 2017.10.10 | India | Diocese of Hosur (Syro-Malabar Rite) was established (without ecclesiastical province) |
| 2017.10.10 | India | Diocese of Shamshabad (Syro-Malabar Rite) was established (without ecclesiastical province) |
| 2018.12.22 | Canada | Apostolic Exarchate of Canada (Syro-Malabar Rite) was promoted as Diocese of Mississauga (without ecclesiastical province) |
| 2025.08.28 | India | Diocese of Faridabad (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Faridabad (with suffragan sees Bijnor and Gorakhpur) |
| 2025.08.28 | India | Diocese of Kalyan (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Kalyan (with suffragan sees Chanda and Rajkot and gained territory from Diocese of Shamshabad) |
| 2025.08.28 | India | Diocese of Shamshabad (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Shamshabad (with suffragan see Adilabad and lost territory to Metropolitan Archdiocese of Kalyan, Metropolitan Archdiocese of Ujjain, Diocese of Adilabad, Diocese of Bhadravathi, Diocese of Bijnor, Diocese of Chanda, Diocese of Gorakhpur, Diocese of Jagdalpur, Diocese of Rajkot, Diocese of Sagar and Diocese of Satna) |
| 2025.08.28 | India | Diocese of Ujjain (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Ujjain (with suffragan sees Jagdalpur, Sagar and Satna and gained territory from Diocese of Shamshabad) |
