

The name Chennai originates from the word Chennapattinam or Chennapattanam or even Chinnupattanam. It is named after Chinnu the Great town, which had developed near Fort St. George. The British built this fort in 1640.
Chennai is the fourth largest metropolitan city of India. It is both the commercial and cultural capital city of the south-eastern state of Tamil Nadu. The city is located on the Coromandel Coast of the Bay of Bengal. The British developed the city into a major urban centre along with a strong naval base in the 17th century. By the 20th century, it became an important administrative centre.

The Guindy National Park is one of the few parks which are lodged up within the limit of the city. Chennai is one of the few cities in the world that accommodates a national park, within its limits.

| Country | India |
| State | Tamil Nadu |
| City | Chennai |
| Coordinates | 13.09° N 80.27° E |
| Area | 174 sq km (70 sq mi) |
| Population | 4,681,087 (2011) |
| Density | 26,903 /km2 (69,678 /sq mi) |
| Metro | 7,413,779 (2010) |
| Religion | Hindus, Christians, Muslims |
| Time zone | +5.30 GMT |