Kashmiri in Devanagari

"kas" is wrong for a Kashmiri project (ISO 639-3 while ISO 639-1 exists). That should be ks. http://ks.wikipedia.org already exists, so you should take your free and open knowledge there! :). Wikimedia doesn't create projects for one and the same language in multiple scripts. That is something that should be resolved using script conversion.

P.s. we will not have the discussion about "proper language codes" here. Please take that up with the Wikimedia Language Committee if you disagree with my above statement. I'm sure they are very interested in explaining the Wikimedia policies to you.