His Excellency the Governor of Tamil Nadu Thiru Surjit Singh Barnala is the constitutional Head of the State.
Hon’ble Chief Minister of Tamil Nadu Kalaignar M Karunanidhi is the Head of the elected Government and heads the Council of Ministers.
Hon’ble Chief Justice of Madras High Court Hon’ble Justice Thiru A. K. Ganguly is the Head of Judiciary.
Tamil Nadu State has a population of 62,405,679 as per Census 2001 and covers an area of 130,058 sq.kms. Chennai (formerly known as Madras) is the State Headquarters. The administrative units of the State are:
| Districts | 32 |
| Revenue Divisions | 73 |
| Taluks | 208 |
| Firkas | 1,120 |
| Revenue Villages | 16,563 |
| Municipal Corporations | 8 |
| Municipalities | 150 |
| Panchayat Unions (Blocks) | 385 |
| Town Panchayats | 561 |
| Village Panchayats | 12,618 |
| Lok Sabha Constituencies | 39 |
| Assembly Constituencies | 234 |