How do 'Chennaiite' and 'Tamilian' differ from each other..

 Chennaiite" and "Tamilian" both refer to people from the Indian state of Tamil Nadu, but they emphasize different aspects of identity.

1. Chennaiite: This term specifically refers to someone who is from or resides in the city of Chennai, which is the capital of Tamil Nadu. It highlights the connection to the urban center of Chennai and may denote a sense of belonging or identity associated with the city itself.

2. Tamilian: This term is more broad and refers to anyone who is a native or inhabitant of Tamil Nadu, regardless of whether they live in Chennai or elsewhere in the state. It emphasizes the regional or cultural identity tied to Tamil Nadu as a whole rather than a specific city.

In summary, while both terms refer to people from Tamil Nadu, "Chennaiite" is more specific to residents of Chennai, while "Tamilian" encompasses a broader group of people from the entire state of Tamil Nadu.