Um i know হারিয়ে গেছে airs on Feb 2 in the US but i was wondering if anyone knows when it shows in Australia?

I don't think the Australia airdate has been announced yet.
On Lostpedia, the only premieres that have been announced are US, UK & Canada.
Hope আপনি don't have to wait long :)

Im pretty sure its out on the same তারিখ everywhere

I searched on various sites but didn't get anything. I think no তারিখ about airing of হারিয়ে গেছে season 6 in Australia has been announced. If there will be any news about it, I will share with you.