plz tell me what kind of jar files required when we apply java perisitence API using Hibernate ORM.

Well, if you're question is really "What do we need to use Hibernateand JPA in an application?", well, here's a great link to help you find the answer:

Setting Up Hibernate3 for use with JPA Annotations


In essence, this is what you need, at the very least:

*A Java5 JVM or better

*The Hibernate Core libraries from Hibernate.org - this includes not only the core libraries, but the various supporting jar files as well, which all comes in the download.

*The Hibernate Annotations download, which include the JPA annotations in the ejbpersistence jar file

*Your JDBC driver to connect to your database. And of course, you'll need a database as well. :)