| Sl. No | Name | Designation | Period |
| 1 | Dr.A.Venugopal | President PTB | 1967 |
| 2 | Thiru.K.R.Purushothaman | President PTB | 1968 |
| 3 | Thriu.W.S.Venkataramanajulu | President PTB | 1969 |
| 4 | Thiru.V.Kulandaivelu | President PTB | 1970 |
| 5 | Thiru.V.Munuswamy | President PTB | 1971 |
| 6 | Thiru.T.K.Singaram | President PTB | 1972- 1976 |
| 7 | Thiru.Murasolimaran | President PTB | 1973 |
| 8 | Dr.V.Shanmugasundaram | President PTB | 1971 |
| 9 | Thiru.T.K.Kapali | President PTB | 1975 |
| 10 | Justice.R.Sadasivam | President PTB | 1976 |
| 11 | Thiru.T.K.Singaram | President PTB | 1977 |
| 12 | Thiru.M.A.M.Ramaswamy | President PTB | 1973-1979 |
| 13 | Prof.S.Sivasubramanyan | President PTB | 1980 |
| 14 | Thiru.U.S.Natarajan | Chairman PTB | 1980-1983 |
| 15 | Thiru.S.T.Kasirajan | Chairman PTB | 1983-1989 |
| 16 | Thiru.V.Sankarasubbian | Chairman PTB | 1989-1991 |
| 17 | Thiru.C.Chellappan | Chairman PTB | 1991-1992 |
| 18 | Thiru.J.R.Ramanathan | Chairman PTB | 1992-1993 |
| 19 | Thiru.V.Palanisamy | Chairman PTB | 1993-1995 |
| 20 | Thiru.S.Rajarathinam | Chairman PTB | 1995-1996 |
| 21 | Thiru.K.Jayaraman | A.G. & O.T &
Administrator of PTB |
10.10.1996 – 19.12.1996 |
| 22 | Thiru.M.Chockalingam | A.G. & O.T &
Administrator of PTB |
20.12.1996- 02.06.1997 |
| 23 | Thiru.O.Venkatachalam | A.G. & O.T &
Administrator of PTB |
03.06.1997- 30.06.1997 |
| 24 | Thiru.S.Ashokkumar | A.G. & O.T &
Administrator of PTB |
01.07.1997- 18.09.1997 |
| 25 | Thiru.S.Muthuswamy | A.G. & O.T &
Administrator of PTB |
19.09.1997- 18.01.1998 |
| 26 | Thiru.A.J.Murugananathan | A.G. & O.T &
Administrator of PTB |
19.01.1998- 05.07.1998 |
| 27 | Thiru.K.Jayaraman | A.G. & O.T &
Administrator of PTB |
06.07.1998- 31.07.1998 |
| 28 | Thiru.A.J.Murugananathan | A.G. & O.T &
Administrator of PTB |
01.08.1998- 02.05.1999 |
| 29 | Thiru.S.Soundararajan | A.G. & O.T &
Administrator of PTB |
03.05.1999- 30.09.1999 |
| 30 | Thiru.A.C.Arumuga
Perumal Aditya |
A.G. & O.T &
Administrator of PTB |
01.10.1999- 07.12.1999 |
| 31 | Thiru.V.K.Thirunavukkarasu | A.G. & O.T &
Administrator of PTB |
08.12.1999- 29.09.2000 |
| 32 | Thiru.Misa.Ganesan A.G. & O.T &
Administrator of PTB |
President PTB | 2000-2002 |
| 33 | Thiru.P.V.Kalyana Sundaram | President PTB | 2002-2003 |
| 34 | Thiru.S.Seran | President PTB | 2003-2004 |
| 35 | Dr.R.Prabhaakaran | President PTB | 2004-2005 |
| 36 | Dr.R.Thandavan | President PTB | 2005 |
| 37 | Thiru.S.Tamilvanan | A.G. & O.T &
Administrator of PTB |
29.08.2005 23.12.2005 |
| 38 | Thiru.G.M.Akbarali | A.G. & O.T &
Administrator of PTB |
23.12.2005- 26.03.2006 |
| 39 | Thiru.A.Ratnavelu | A.G. & O.T &
Administrator of PTB |
27.03.2006- 01.12.2006 |
| 40 | Thiru.S.Sivaprakasam | A.G. & O.T &
Administrator of PTB |
02.12.2006- 14.09.2008 |
| 41 | Thiru.N.Authinathan | A.G. & O.T &
Administrator of PTB |
15.09.2008- 09.10.2009 |
| 42 | Dr.Ishari K.Ganesh | President PTB | 09.10.2009 – 13.09.2011 |
| 43 | Dr.M.K.Loganathan | President PTB | 14.09.2011-2012 |
| 44 | Thiru. T. N. Seshan | Interim Administrator PTB | 17.10.2012-2013 |
| 45 | Thiru S.Jayachandran | President PTB | 2013-2018 |
| 46 | Mr.Justice (Retd.) P.Shanmugam | Interim Administrator PTB | 25.06.2018-07.01.2021 |
| 47 | Thiru.P.Murugan | A.G. & O.T &
Administrator of PTB |
08.01.2021-20.06.2021 |
| 48 | Thiru.S.Raju | A.G. & O.T &
Administrator of PTB |
21.06.2021-30.04.2023 |
| 49 | Mr. Justice (Retd.) S. Jagadeesan | Administrator of PTB | 01.05.2023to till Date |
