Yeah, my inner-suburbs flat is probably 50+ sqm, which is comfortable, but I pay about 4 times L.Spiro's quoted price, at a distance of 5km from the city centre (15 minute train to work).
That is US 16' * US 16', which is smaller than most hotel rooms.
I actually rented a tiny ~25 sqm flat in inner Sydney once, and that was $300 per week...
Japan has outrageous food prices ( $120 USD for a watermelon, $45 per LB for grapes ?! )
Things that aren't common locally are going to be expensive anywhere.
don't know who you talk to about india, but a guy on another forum i frequent is from india, and he's constantly bitching about how everything is 2-4x the cost of what it'd be in the us/uk.
How much is a traditional curry, the kind that the locals eat, in Japan or India -- probably extremely cheap.