How to deploy an external artifact to repository in pom.xml

We can use "maven-deploy-plugin" to upload any artifact to repository from a location by pom.xml.
By this we can upload any artifact without uploading the generated artifacts, also without install/deploy goal.

....
</plugins>
....
<plugin>
    <artifactId>maven-deploy-plugin</artifactId>
    <version>2.8.2</version>
    <executions>
        <execution>
            <id>deploy-file</id>
            <phase>clean</phase> <!-- The phase in which you want to upload the file to Repository . In this case "mvn clean " goal will upload the artifact.-->
            <goals>
                <goal>deploy-file</goal>
            </goals>
            <configuration>
<repositoryId>maven-public</repositoryId>  <!-- This is the id which contains the user/pass to connet to Nexus. This will be under "servers" section in settings.xml -->
                <file>C:\Users\bismayam\Desktop\poc.jar</file>
                <url>http://<host>:<port>/nexus/content/repositories/test-releases/</url>
                <groupId>testGroup</groupId>
                <artifactId>testArtifact</artifactId>
                <version>1.0</version>
                <packaging>jar</packaging>
            </configuration>
        </execution>
    </executions>
</plugin>
</plugins>