Yoga in Tamil Nadu - Should I bother?

Rockers

Namaste (just trying to get into the swing of things!)

I study yoga here in Australia and will be heading to India at the end of the year. I've been tossing around the idea of 'sitting' in on a yoga class (probably just a day or so due to restricted free time). I'm presuming there are places that cater for this as I bet a lot of tourists head to India to 'find their spiritual side'...

Does any one know of a reputable place that offers yoga classes to westerners?

I'd love to experience a class in India (as I'll be needing to keep it up while I'm away any way) but I have heard of a lot of dodgy yoga studios that are just set up to make a quick buck from travellers.

We'll mainly be in Trichy, but will also be in Delhi, Jaipur, Agra and Chennai. Any contact details, vague directions or general feedback would be great!

__________________
"Freedom is not doing what one pleases for the sake of it, but the ability to make good, moral choices to fulfil our social duties to our fellow human beings".
Gandhi