Hi All,
Issue been resolved myself as it is a very sensitive issue i.e. case sensitive attribute names should not be in caps
--batch
Content-Type: multipart/mixed; boundary=changeset
--changeset
Content-Type: application/http
Content-Transfer-Encoding: binary
POST Users HTTP/1.1
Content-Type: application/atom+xml
Content-Length: 975
<?xml version="1.0" encoding="utf-8"?>
<atom:entry xmlns:atom="http://www.w3.org/2005/Atom"
xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices"
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<atom:content type="application/xml">
<m:properties>
<d:Userid>0100</d:Userid>
<d:Firstname>TEST_INC</d:Firstname>
<d:Lastname>0001</d:Lastname>
<d:Email>kumar@gmail.com</d:Email>
<d:Phone>NZ0025</d:Phone>
<d:Country>IN</d:Country>
</m:properties>
</atom:content>
</atom:entry>
--changeset
Content-Type: application/http
Content-Transfer-Encoding: binary
POST Users HTTP/1.1
Content-Type: application/atom+xml
Content-Length: 975
<?xml version="1.0" encoding="utf-8"?>
<atom:entry xmlns:atom="http://www.w3.org/2005/Atom"
xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices"
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<atom:content type="application/xml">
<m:properties>
<d:Userid>0101</d:Userid>
<d:Firstname>TEST_INC</d:Firstname>
<d:Lastname>0001</d:Lastname>
<d:Email>kumar@gmail.com</d:Email>
<d:Phone>NZ0025</d:Phone>
<d:Country>IN</d:Country> </m:properties>
</atom:content>
</atom:entry>
--changeset--
--batch--