She is a strong devotee of Virupaksheeswarar. When asked if she is dressed for any special occasion, she said that she dresses like this every day. The shop she occupies is also owned by the temple.
On a closer look at the photo, I see the Harley Davidson logo on the mask. Just a coincidence I presume!
From The Chennai Photowalk
Madras Nalla Madras. A photo blog on Madras, that is Chennai 