| 1868 |
Agricultural School was started at Saidapet, Chennai (Madras) |
| 1906 |
The Saidapet Agricultural School was shifted to Coimbatore and foundation stone laid for Madras Agricultural College. |
| 1908 |
Students were admitted to education program leading to Licentiate in Agriculture (L. Ag.) |
| 1909 |
Opening of Agricultural College and Research Institute (AC & RI) by Sir Arthur Lawley. |
| 1920 |
The AC & RI was affiliated to Madras University. A new course of study leading to a three year degree in Agriculture -B.Sc. (Ag.) was started. |
| 1945 |
Second Agricultural College was started at Bapatla (Now in Andhra Pradesh). |
| 1958 |
Regional Post Graduate Center was established to offer programs leading to Masters degree in Agriculture & Horticulture. |
| 1960 |
Integrated system with four year B.Sc. (Ag) degree program after Pre-University education was introduced and subsequently doctoral program in Agriculture was started. |
| 1965 |
Third Agricultural College was started at Madurai, Tamil Nadu and the Masters program at Madurai was introduced during 1969. |
| 1971 |
The Tamil Nadu Agricultural University came into existence with Coimbatore as its Head Quarters. |
| 1972 |
A separate Faculty of Horticulture was established and a degree program in Horticulture - B.Sc. (Hort.) was introduced. The College of Agricultural Engineering was established at Coimbatore and a Bachelor's degree program in Agricultural Engineering - B.E.(Ag) was introduced. |
| 1973 |
Doctoral program was introduced in Horticultural College and Research Institute, Coimbatore. |
| 1975 |
Faculty of Post Graduate Education was established in TNAU, Coimbatore and Masters and Doctoral (1978) programs were started in Environmental Sciences and Biotechnology. |
| 1976 |
The Madras Veterinary College became constituent unit of TNAU and B.V.Sc. degree program was suitably restructured*. |
| 1977 |
Bachelor's degree (B.F.Sc.) program in Fisheries Science at Thoothukudi was started*. |
| |
Masters and Doctoral program in Agricultural Engineering was introduced. |
| 1980 |
Bachelor's degree (B.Sc. (H.Sc.)) in Home Science was launched in Madurai Campus. |
| 1981 |
Masters program was introduced in Home Science College & Research Institute, Madurai and Doctoral program in 1988. |
| 1989 |
Doctoral program in Agriculture was introduced in Agricultural college & Research Institute, Madurai; Masters program introduced in Forest College & Research Institute, Mettupalayam and Horticultural College & Research Institute, Periyakulam. |
| 1990 |
Masters program in Agriculture was introduced in Agricultural College & Research Institute, Killikulam, Thoothukudi district, Tamil Nadu and Doctoral program in Forest College & Research Institute, Mettupalayam. |
| 1998 |
B.Tech.(Food Process Engineering) introduced as self supporting program. |
| 2002 |
B.Tech.(Horticulture) and B.Tech(Agricultue Biotechnology) introduced as self supporting programs. |
| 2004 |
B.Tech.(Energy and Environmental Engineering) introduced as a self supporting program. |
| 2005 |
Centenary celebrations of AC&RI, Coimbatore |
| 2006 |
B.Tech.(Bioinformatics) introduced as a self supporting program. |
| 2008 |
Dual Degree Masters Program with Cornell University, Ithaca, USA introduced. Dual degree option with Dalhousie University, Canada established for undergraduate program in B.Tech.(Environmental Landscape Horticulture) |
2011 |
B.Sc.(Sericulture) introduced. M.Tech. (Ag.) in Nanotechnology introduced and M.Tech. in Environmental Engineering introduced. |
2012 |
Masters program introduced in Plant Genetic Resource and Remote Sensing. |
