As per the sources NSO Results 2010-2011 has been published by Science Olympiad Association today. It was 13th National Science Olympiad.
The results for it can be checked on the official website of Science Olympiad. The official website for this result is sofworld.org.
But due to heavy traffic the results cannot be access and hence the declaration of results cannot be confirmed. Though result date was scheduled for 22nd January 2011.
You can also try the result site http://www.sof.org.in/ which has also suffered a database error. We will inform when the results can be seen and traffic is less. best of luck ..
Various prizes such as certificates, trophies, one-time cash scholarship, CDs are given in this examination to successful candidates.