- St. Thomas College is honoured with the visits of many reputed personalities right from the beginning of the college.
- 1950: Laying the foundation stone by His Grace Dr. Mathaias S.D.B Archbishop of Madras
- 1950: Laying the foundation stone by His Grace Dr. Mathaias S.D.B Archbishop of Madras
- 1953:Dr.Kailas Nath Kaitju Home Minister of Indian union at the college
- 1954: Pandit Jawaharlal Nehru addresses from the main building
- 1957: Christu Raj Hostel inaugurated by Dr. B. Rama Krishna Rao, Governor of Kerala.
- 1962: Inauguration of the Auditorium and the Library Building (B. Block) by Shri. V.V. Giri, Governor of Kerala
- 1974: St. Philip’s Hostel blessed and inaugurated by Mar Sebastian Vayalil.
- 1976: Mrs Indira Gandhi Inagurating the Silver Jubilee Celebrations
- 1991: Jimmy George Memorial Stadium inaugurated by Shri. M.M. Jacob, Minister for Home Affairs, Govt. of India.
- 1997: Chief Minister E.K Nayanar Inaugurates the valedictory of Golden jubilee celebrations of Indian independence.
- 2000: Golden Jubilee Celebrations of the College - ‘Millennium Expo’ and ‘Millennium Nites’ inaugurated by Sri. M.M. Jacob, Governor of Meghalaya.
- 2004: New Library building blessed by Mar Jeseph Pallickaparampil.
- 2006: Golden Jubilee Library inaugurated by H. E. Mar Joseph Kallarangatt
- 2008: Czech Ambassador Dr. Hynek Kmonicek inaugurates National Seminar on “Emerging Europe: Prospects and Challenges for Asia”.
- 2009: College hosts All India Interuniversity Cross Country Championship Meet.
- 2010: Diamond Jubilee Celebrations of the college inaugurated by Justice K.G. Balakrishnan, Chief Justice of India.
- 2012: International Conference on Materials Science and Technology (ICMST 2012) inaugurated by Prof. C.N.R. Rao, Chairman, Scientific Advisory Council to the Prime Minister of India.
- 2012: 62 Foundation day celebrations inaugurated by Dr. A P J Abdul Kalam
- 12/08/2013 - Newly constructed Student Amenities Centre and Canteen blessed by H.E. Bishop Mar Joseph Kallaragattu in the presence of Mar Jacob Muricken, Rev. Dr. Joseph Kollamparambil, Rev. Msgr. Philip Njaralakatt and Dr. K K Jose.
- 12/09/2013 - Alumni Award distribution and Foundation Day celebration inaugurated by Dr. Sasi Tharoor, Union Minister for State.
- 15/12/2013 - Blessing of foundation stone and inauguration of construction works of Sports Complex - Mar Joseph Kallarangattu, Mar Joseph Muricken, Mar Joseph Pallickaparambil and Sri. K.M. Mani.
- 03/01/2014-Inauguration of ICSM 2014 and IWMA 2014 organized by Statistics Department-International Conference.
- 8-9 October 2014:Prof V N Rajasekharan Pillai ( Exxecutive Vice President, KSCSTE & Principal Secretary to Govt. of Kerala) Inaugurates the NANOCHEMBIO-2014
- 23-25 February 2015:Prof Arunoday Saha hands over the report of the NAAC peer Team to the Principal Rev.Fr. N V Joseph Njarakkattil at the Exit Meeting
- 28 February 2016 : H. E. Mar Joseph Kallarangatt Bishop of Palai and Patron of the College , blesses the Sports Complex
- 13 February 2016:One day International Symposium on Concurrent Methodologies in organic Synthesis was organized by Department of Chemistry of the college in association with the Institute for Intensive Research in Basic Sciences (IIRBS).Dr. Sunny Joseph, Principal, presents a Memento to Chemistry Nobel Laureate Prof. Ei-ichi Negishi on behalf of the college
- 5-8 June 2016:Department of Physics Conducted the Second International Conference on Materials Science and Technology(ICMST 2016) from 5 to 8 June 2016 with the participation on oof around 550 Scholars and delegates from 20 Countries. The formal Inauguration of ICMST 2016 was conducted on 6th June 2016 by Pro. P J Kurian, Hon. Deputy Chairman of Rajyasabha in the presence of Nobel Laureates Prof. Ada E.Yonath(Israel) and Prof. Klaus Von Klitzing (Germany).H.E Mar Joseph Kallarangatt, Bishop of Palai and Patron of the College presided over the Inaugural Function
- Ms. Irom Sarmila ,Crusader against AFSPA and Civil Rights Activist known as the ‘Iron Lady of Manipur’, visited the college under the auspices of the Department of Politics
- 3-5 January 2018:An International Conference on Recent Advances in Statistical Methodology with Applications in Clinical and Official Statistics was organized by Department of Mathematics and Department of Statistics. Dr. Barry D Nussbaum , President of American Statistical Association , inaugurates the International Conference
- The Internal Quality Assurance Cell (IQAC) of St. Thomas College Palai organized a UGC-CPE-Sponsored National Workshop on New Methodology of NAAC Accreditation on 21 July 2018.
The inauguration of the workshop by H .E. Mar Jacob Muricken, the Auxiliary Bishop of Palai and the Manager of the College
