I want to learn Solr.May i know some good tutorial/links for the same? Is Solr available for .net too?
If you mean running the Solr server on .Net instead of Java, then no, there is no port. I've been trying to run it with IKVM here but it's low-priority to me so I can't put much time on it. It'd be great if someone can help out with this.
If you mean using/connecting to Solr from a .Net application, then yes, you can use SolrNet or SolrSharp for that.
I blogged about this not long ago.
Jeff Rodenburg created a C# API for interoperation with Solr. The API supports:
Adding, updating and deleting documents from a solr index. Configuration support for multiple solr instances. Flags for Read/Write modes in support of solr replication. Search queries that return strongly-typed objects Support for facets
and more ... http://www.codeplex.com/solrsharp