Numbeo says it is up to date (April, 2013 for Houston data and May 2013, for Bangalore data). I feel that the (Bangalore) housing numbers are reasonably accurate because: 1. Data being crowd-sourced with no real incentive for contributors to lie; 2. Going by personal experience
> If you check out a property listing site: <http://www.magicbricks.com/propertyDetails/3-BHK-3000-Sq-ft-..., it says INR.60,000 which works out to approximately $1153.84 (around 52 rupees to a dollar). Obviously, numbeo.com has got the most important (housing) numbers wrong.
This is a texas sharpshooter argument. It is based on a single data point---which happens to be a 5-floor multi-storey apartment---which is hardly a representative sample of (single floor) 3-BHK apartments in central Bangalore. Claiming that numbeo has got housing numbers wrong by this one data point alone is ridiculous.