| 21 NOV 1999 | Perpetual Profession of the first seventeen members. |
| 1998-2000 | Rev. Fr. S.S Sahaya Raj OFM Cap.,was appointed as a the Director |
| 06 SEP 2001 | The new St. Thomas Novitiate was built at Thirunagar |
| 12 AGU 2001 | The New Community (Amali Illam) Opened at Tiruchirapalli Bishop House Campus |
| 01 JUNE 2002 | The New Branch Opened at Karungulam |
| 2000-2003 | Rev. Fr.Arul Doss OFM Cap., took charge as the Director |
| SEP 2003 | Approval of the “Constitution of FST” by Bishop Antony Devotta, Trichy. |
| 6 MAR 2003 | Silver Jubilee of the Congregation of the Franciscan Sisters of St.Thomas |
| 5 SEP 2003 | “Aram kaatha Assiyaar” book was released |
| 25 MAY 2004 | Second General Chapter: Sr. Viakulamary was re-elected as the Superior General and the Councillors took charge of the administration. |
| 01 JUNE 2005 | The new Community opened at Ponmalaipatty. |
| 14 SEP 2005 | Generalate was shifted to Sethurapatti Road, Fatimanagar |
| 2005-2007 | Again, the Diocese of Tiruchirappalli took charge of the Diocese and Rev. Fr. K. Devaraj was appointed as the Director. |
| 28 MAY 2006 | The Convent and Health Care Centre Built at Melvazhi |
| 4 JULY 2006 | Bishop Thomas Fernando, the Founder of the Congregation, died and was buried in Tuticorin. |
| 21 MAR 2006 | The New Branch (Kolphing Hostel) opened at Madurai |
| 21 JAN 2007 | The new branch opened at Guziliamparai |
| 28 JULY 2007 | The New Convent and Health Care Centre opened at Murugathuranpatty |
| 12 SEP 2007 | The Second Home for Children “St. Thomas Home of Love” was started at Fatima Nagar. |
| 17 MAR 2008 | Sr. Iyda Elizabeth Rani died |
| 18 FEB 2009 | The new branch (Maria Illam) opened in Dindigul |
| 2009- 2014 | Rev.Fr. S. Chinnappan was appointed as the Director |
| 1 JULY 2009 | Inauguration and blessing of the New Generalate of St. Thomas Sisters at Fatima Nagar, with the great help and blessings of Most Rev. Dr. Antony Pappusamy, Bishop of Dindigul and Rev.Fr.Britto Packia Raj . |
| 1 JULY 2009 | Releasing of FST Hymn book – ISAIYAL INAIVOM |
| MAY 2010 | Third General Chapter and Election: Rev.Sr.Arockia Leeli was elected as the 6th Superior General and the Councillors were elected. various commissions were formed based on the ministry of the sisters. |
| 1 DEC 2010 | Silver Jubilee of Malampatty House |
| SEP 2010 | Approval of the new Constitutions of Franciscan Sisters of St. Thomas by the Most. Rev. Antony Devotta, Bishop of Trichy |
| NOV 2011 | FST – New Medal with St.Thomas and The Bible |
| 9 NOV 2012 | The new Convent Constructed at E- Mettupatty called as “Sahaya Matha Illam”. |
| 04 JUNE 2012 | New Branch (Planet Hope) Opened in Bangalore |
| 23 DEC 2012 | Silver Jubilee of St. Thomas Mercy Home, Malayadipatty |
| 11 JULY 2013 | FST – THOMAS MALAR – First issue of the Magazine was brought out. |
| 13 JULY 2014 | Silver Jubilee of Alangapatty House |
| 2014-2015 | Rev.Fr. Thomas Paulsamy was appointed as the Director |
| 29 DEC 2014 | Rev. Sr. Therese Victoria died. |
| 29 MAY 2014 | Renewal Assembly Conducted by Sr. Ruby OSM |
| 31 MAY 2015 | The New Branch Opened At Thenkasi |
| JUNE 2015 | FST – The new Prayer Book and Founder history book |
| MAY 2016 | IVth General Chapter: Sr. Arockia Leeli was re-elected as the 7th Superior General and the Councillors took charge of the administration. |
| 2 OCT 2016 | The New Convent and Health Care Centre opened at Melameignanapuram , called as “ASSISI ILLAM”. |
| 2 OCT 2016 | Our Congregation spreads beyond India, the Diocese of Iglesias in Italy, a new convent was set up for our new mission, The first two Indian Sisters Sr. Mary Preethi and Sr. Pravina Mary were sent and received their mission mandate. This community was closed on 05 May 2023. |
| 17 JAN 2017 | Renewal Assembly Conducted by Rev. Fr. Mathew OFM Cap., |
| 14 DEC 2017 | The First ‘St. Xavier’s Hospital’ was inaugurated at Malampatty” in Pudukottai. |
| 16 JAN 2018 | Renewal Assembly by Rev. Fr. Mathew OFM Cap., (the memory of 40 Years FST) |
| APRIL 2018 | New Medal re-designed with St. Thomas and The Bible |
| SEP 2018 | Final approval of the revised Constitution of Franciscan Sisters of St. Thomas by the Most. Rev..Antony Devotta, Bishop of Trichy |
| 25 MAY 2019 | The new branch was started in Tindivanam |
| 6 JUNE 2019 | The new Community was started in the diocese of Palayamkottai: St.Xavior’s College hostel. |
| 13 JUNE 2020 | Blessing and Inauguration of the New convent in Guziliamparai. |
| 2 SEP 2020 | The new Convent was started in the Diocese of Palayamkottai Bishop’s house and it was closed on 31 March 2025. |
| 20 AUG 2020 | New FST Website was launched |
| 10/May/2021 | New community was started at Anghiari in the diocese of Arezzo – Toscana, Italy |
| 11/Mar/2022 | New Community was started at Lucca – Toscana in the diocese of Lucca-Italy and closed on 25 May 2024 |
| 11 Mar 2022 | New community was started at the Diocese of Santander, Spain and closed on 04 April 2024 |
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| 28 April 2024 | Blessing and Opening of New Community at Kumarapatti |
| 05 Sep 2024 | St. Devasagayam Shrine – Nattalam |
| 22 Jun 2025 | New Community in the Diocese of Brescia @ Travagliata, ministry in the Old Age Home and in the Parish |
| 03 Dec 2025 | Pastoral Ministry in the Parish of Pedrocca in the Diocese of Brescia |