Starting of the Coimbatore Mission: 29th April 1955
Formation of Coimbatore Forane: Nov. 1973
Erection of the Eparchy of Palghat: 20th June 1974
Inauguration of the Eparchy of Palghat: 8th Sept 1974
Inauguration of the Coimbatore Region and Formation of 3 Foranes: 1st May 2008
Erection of the Eparchy of Ramanathapuram: 18th Jan 2010
Inauguration of the Eparchy of Ramanathapurm & Episcopal Ordination of Msgr. Paul Alappatt: 11th April 2010
Ist Diocesan Day & Releasing of the Diocesan Logo and Anthem (Chief Guest: Mar Andrews Thazhath, Metopolitan Archbishop of Trichur): 4th July 2010
Inauguration & Blessing of Eparchial Catechetical Centre (Gandhipuram) & Animation Centre (Ukkadam): 12th October 2010
Blessing & Inauguration of "Santhom Creations", Tirupur: 25th October 2010
Laying foundation Stone for the Eparchial Minor Seminary (H.E. Mar Jacob Manathodath): 6th January 2011
Inauguration of the Second Pastoral Council: 11th June 2011
Inauguration of St. Marys Minor Seminary, at temporary building in Edayapalayam: 12th June 2011
Releasing of the First Eparchial Directory : 03rd July 2011
Inauguration of the Mission Year:10th September 2011
Inauguration of the Diocesan Website:10th September 2011
Consecration of the Karunya Matha Church Karunya Nagar (Perur):08th December 2011
Erection of the Parish Udumalpet:07th January 2012
Starting of the Dharapuram Mission:4th March 2012
Blessing Of the Presbytery,Karamadai:06th May 2012
The Pastoral Visit of the Major Archbishop Mar George Cardinal Alencherry:6th-8th July2012
03rd Eparchial Day:8th July 2012
Blessing of the foundation stones for Bishop's House & Pastoral Centre by Major Archbishop:8th July 2012
Erection of the Parish Sulur Aero:15th July 2012
Inauguration of the Eparchial Santhom Social Service Society:18th August 2012
Laying foundation Stone for the Minor Seminary at Kozhinjampara:18th January 2013
Consecration of the Good Shepherd Church, Karamadai:20th January 2013
Starting of Vadavally Mission:10th Feburary 2013
Starting of Ettimada Mission:17th Feburary 2013
Starting of St. Alphonasa Mission, Edayapalayam(Mettupalayam):3rd March 2013
Starting of Athipalayam Pirivu Mission(Ganapathy, Gandhipuram):11th August 2013
Starting of Sowripalayam Mission:20th October 2013
Consecration of the St. Judes Church, Dharapuram:21th December 2013
Shifting of The Minor Seminary to the new building in Vadakkukadu(Kozhinjampara):06th January 2014
Consecration of the St. Alphonsa Church, Palladam:1st Feburary 2014
Starting of Holy Mass at Peelumadu (Sitra):2nd Feburary 2014
Blessing Of Presbytery, Dharapuram:23rd Feburary 2014