Criteria:
- Any Member of TNASI in good standing can be proposed for the Oration and seconded by two other members who are in good standing. The Bio-data of the proposed orator and Title of Oration should accompany each proposal letter. The decision of the official committees scrutinizing the proposal will be final. The nomination letter should reach the Honorary Secretary before 31st of May.
| Dr. C. Gauthaman | Nagercoil | 2011 |
| Dr A. Rajasekar | Salem | 2012 |
| Dr. M. Ramesh | Madurai | 2015 |
| Dr. Vikram Kate | Pondicherry | 2016 |
| Dr. S. G. Balamurgan | Madurai | 2017 |
| Dr. M. Kanagavel | Chennai | 2018 |
| Dr. Ravindran Kumeran | Chennai | 2019 |