Hello Shiva,

Here are the sample papers of JNVS of class 6. This includes pevious question papers and model question papers with solutions -

https://file.nvshq.org/download/jnvst-2018-previous-year-question-paper/#

https://file.nvshq.org/download/jnvst-2017-question-paper-with-solution-key-pdf/#

https://file.nvshq.org/download/navodaya-entrance-solved-paper-2010/

Hope this helps.