  A desirable feature of models with large extra dimensions and a TeV range
string scale is the possibility to understand an ultralight sterile neutrino
needed for a simultaneous understanding of solar, atmospheric and LSND results
as a Kaluza-Klein state of a bulk neutrino. How these oscillation data are
understood in quantitative detail is still not clear. We have recently
suggested a new way to understand the solar neutrino data in this framework by
a combination of vacuum and small angle MSW transition of $\nu_e$ to sterile KK
modes of the bulk neutrino. This mechanism can be embedded into an economical
extension of the standard model in the brane to understand the atmospheric and
LSND data. After a brief discussion of how small neutrino masses arise
naturally in extra dimensional models, we review this new suggestion.
