Vanakkam everyone !

I would like to ask question about temple customs. I know this subject have been debated, I have read many advices and answer from other treads, but I would like to ask a very specific question:

For going to the temple regulary, I would like to wear proper clothes. Meaning what other indians wear to go to the temple. I know it's casual clothes for the born indians in the forum, but I am little lost about what to wear.
I want to be respectful of the tradition, the people and the Gods of the temple, that's why I don't want to come with tee-shirt and jean like someone that doesn't care.

So here's my question: what are the Tamil unmarried girls wearing to go to the temple ? I have saree and know how to put it but I can't wear it since I'm not married.

Thank you !

Aum Namah Shivaya