Diocesan Curia

1. Most Rev. Dr. M. Devadass Ambrose – Bishop of Thanjavur
2. Very Rev. Fr. R.LurduSamy, Vicar General
3. Rev. Fr. U. John Joseph Sundaram, Chancellor
4. Rev. Fr. M.Xavier, Financial Administrator
5. Rev. Fr. A.Augustine Ambrose, Episcopal Vicar
6. Rev. Fr. L. Sagayaraj, Judicial Vicar

Other Office Bearers

1. Very Rev. Fr. I. Francis Xavier, Vicar Forane, Thanjavur
2. Very Rev. Fr. K. Selvam Sebastian, Vicar Forane, Nagapattinam
3. Very Rev. Fr. A. Jeyaraj, Vicar Forane, Pudukkottai
4. Very Rev. Fr. A. Susai Arul, Vicar Forane, Mayiladuthurai
5. Very Rev. Fr. M. Maria Susai, Vicar Forane, Pattukottai
6. Very Rev. Fr. A. Michael, Rector & Parish Priest, Vailankanni
7. Rev. Fr. A. Savarimuthu, Director, Pastoral Centre
8. Rev. Fr. G. V. Panneer Selvam, Rector, St. Mary's Minor Seminary
9. Rev. Fr. A. Phlominraj, Education Secretary
10. Rev. Fr. G. John Britto, Project Secretary
11. Rev. Fr. J. John Bosco Silvester, Bishop's Secretary

Diocesan Boards

1. College of Consultors
2. Diocesan Finance Committee
3. Project Committee
4. Education Committee
5. Diocesan Pastoral Council
6. Diocesan Coordination Council
7. Senate Of Priests

Pastoral Commissions

1. Commission for Bible and Evangelization
2. Commission for Liturgy and Catechetics
3. Commission for Ecumenism, Dialogue & Communication
4. Commission for Laity
5. Commission for Family and Women
6. Commission for Youth and Labour
7. Commission for SC/ST/BC
8. Catholic Charismatic Commission
9. Basic Christian Communities