Alwarthirunagar is an urban locality in Chennai, the capital city of Tamil Nadu, India.

[1] It falls under Valasaravakkam municipality, in the Maduravoyal Assembly constituency, Tiruvallur district.

During the late 1980s, Velan Nagar was affected by stagnating water during the rainy season.

Palaniappa Nagar is adjacent to Alwarthirunagar with streets connecting from Arcot Road and Radhakrishnan Salai.

There is a multi-brand superstore, grocery stores, fast food outlets, a bakery and a library.