Principal Instructors Upto 1836
| Ittoop Ramban | 1815-1816 | |
| Kidangan Geevarghese Mar Philexenos | 1816 | "Cottayam College" with CMS Cooperation |
| Joseph Fenn | 1818-1825 | |
| Joseph Peet | 1833-1836 |
Chief Malpans 1836 - 1942
| Vattasseril Geevarghese Malpan | Syrian Seminary |
| Malankara Malpan Mathen Corepiscopa | |
| Cheriamadathil C J Skariah Malpan |
Principal 1942 Onwards
| Fr. K. David | 1942-1943 | Orthodox Theological Seminary |
| Fr. C. J. Skariah Malpan | 1943-1947 | |
| Augen Mar Thimethios (H.H. Baselios Augen I) | 1947-1948 | |
| Fr. V K Mathews ( H.H. Baselios Marthoma Mathews I) | 1948-1965 | |
| Fr. K. Philipose (H.G. Philipose Mar Theophilose) | 1965-1967 | |
| Fr. Paul Varghese (H.G. Dr. Paulose Mar Gregorios) | 1967-1996 | |
| Fr. Dr. K M George | 1996-2012 | |
| Fr. Dr. Jacob Kurian | 2012-2015 | |
| Fr. Dr. O. Thomas | 2015-2019 |