Sumon Mahbub bhai from down under sent me over some interesting pics. Apparently every year they do host an event which showcases the great cultural diversity of Australia. Good for them!
Apparently Bangladeshi community which are still small in number did manage to show their presence with a stall with I guess food arcade and probably some cultural programs. I'm still waiting for updates from Sumon bhai.
Until then here are some links to read further.