Try just going through the 1 month trial and see if other places are also giving out trials, talk to them if they didn't say so. The only way to know is to keep trying different guru, until you find one that can really help you to achieve what you want in YOga. There are different purposes for people to take up yoga, some for slimming, some for meditation, some just for fun. Those yoga at gym are generally more watered down technique, cannot be compared to those hardcore ones. I know someone who is also teaching in Bangsar who have quite good experience with Yoga, he's been a monk for about 2 years before he went into the yoga business. Just PM me if interested. Otherwise, just buy some dvds from here http://www.thelearnersheaven.com/category/health/yoga/ to learn as much as you can from home first.

I go to commercial gym and join yoga classes 

lol of course you can. just check the timetable; you are free to join any classes in the gym 

LOL! I just googled Gandha Bherundasana! 

Or just do what u can in the so called multi-level class. I'm sure a good teacher wont force u into doing poses u cant do yet. thats how i started doing yoga. and i gradually take on new challenges as days go by 

What's ur club  I cannot do handstand myself yet leh