I need to use Oracle with Asp.net. Kindly Suggest me for Which Components i need to download to Use Oracle with Asp.net
You could use ODP.net which is Oracle's solution to connect .net applications to the Oracle world.
It ships with a membership provider for ASP.net and an entity framework implementation for Oracle and is integrated in Visual Studio.
This article will provide you with a couple of different ways to use Oracle with .net. Including utilizing Oracle with .net's own ORM Entity Framework.
http://nhforge.org/Default.aspx NHibernate is another ORM that provides a provider for connecting to Oracle.