diff --git a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationService.java b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationService.java
index 5f122b593a0..3515a2e893f 100644
--- a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationService.java
+++ b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationService.java
@@ -51,12 +51,4 @@ public interface ApiApplicationRegistrationService {
     @Path("register")
     Response register(RegistrationProfile registrationProfile);
 
-    /**
-     * This method is used to unregister an API application.
-     * @param applicationName name of the application that needs to be unregistered.
-     * @return the response status of request.
-     */
-    @DELETE
-    @Path("unregister")
-    Response unregister(@QueryParam("applicationName") String applicationName);
 }
diff --git a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationServiceImpl.java b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationServiceImpl.java
index b2f46dc09ef..65392645ea1 100644
--- a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationServiceImpl.java
+++ b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/ApiApplicationRegistrationServiceImpl.java
@@ -18,6 +18,7 @@
 
 package org.wso2.carbon.apimgt.application.extension.api;
 
+import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.json.simple.JSONObject;
@@ -95,6 +96,8 @@ public class ApiApplicationRegistrationServiceImpl implements ApiApplicationRegi
                 return Response.status(Response.Status.NOT_ACCEPTABLE).entity("APIs(Tags) are not allowed to this user."
                 ).build();
             }
+            PrivilegedCarbonContext.getThreadLocalCarbonContext().setUsername(PrivilegedCarbonContext.
+                    getThreadLocalCarbonContext().getUserRealm().getRealmConfiguration().getAdminUserName());
             String username = APIUtil.getAuthenticatedUser();
             APIManagementProviderService apiManagementProviderService = APIUtil.getAPIManagementProviderService();
             String validityPeriod;
@@ -103,35 +106,27 @@ public class ApiApplicationRegistrationServiceImpl implements ApiApplicationRegi
             } else {
                 validityPeriod = registrationProfile.getValidityPeriod();
             }
+
+            String applicationName = "devicetype_app_" + StringUtils.join(registrationProfile.getTags(), "_");
             ApiApplicationKey apiApplicationKey = apiManagementProviderService.generateAndRetrieveApplicationKeys(
-                    registrationProfile.getApplicationName(), registrationProfile.getTags(),
+                    applicationName, registrationProfile.getTags(),
                     ApiApplicationConstants.DEFAULT_TOKEN_TYPE, username,
                     registrationProfile.isAllowedToAllDomains(), validityPeriod);
             return Response.status(Response.Status.CREATED).entity(apiApplicationKey.toString()).build();
         } catch (APIManagerException e) {
-            String msg = "Error occurred while registering an application '"
-                    + registrationProfile.getApplicationName() + "'";
+            String msg = "Error occurred while registering an application with apis '"
+                    + StringUtils.join(registrationProfile.getTags(), ",") + "'";
             log.error(msg, e);
             return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity("false").build();
         } catch (DeviceManagementException e) {
             String msg = "Failed to retrieve the device service";
             log.error(msg, e);
             return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(msg).build();
-        }
-    }
-
-    @Path("unregister")
-    @DELETE
-    public Response unregister(@QueryParam("applicationName") String applicationName) {
-        try {
-            String username = APIUtil.getAuthenticatedUser() + "@" + APIUtil.getTenantDomainOftheUser();
-            APIManagementProviderService apiManagementProviderService = APIUtil.getAPIManagementProviderService();
-            apiManagementProviderService.removeAPIApplication(applicationName, username);
-            return Response.status(Response.Status.ACCEPTED).build();
-        } catch (APIManagerException e) {
-            String msg = "Error occurred while removing the application '" + applicationName;
+        } catch (UserStoreException e) {
+            String msg = "Failed to access user space.";
             log.error(msg, e);
             return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(msg).build();
         }
     }
+
 }
\ No newline at end of file
diff --git a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/util/RegistrationProfile.java b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/util/RegistrationProfile.java
index ef63946fd3b..2111753efec 100644
--- a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/util/RegistrationProfile.java
+++ b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/java/org/wso2/carbon/apimgt/application/extension/api/util/RegistrationProfile.java
@@ -30,9 +30,6 @@ import javax.xml.bind.annotation.XmlRootElement;
 
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class RegistrationProfile {
-
-    @XmlElement(required = true)
-    private String applicationName;
     @XmlElement(required = true)
     private String tags[];
     @XmlElement(required = true)
@@ -40,14 +37,6 @@ public class RegistrationProfile {
     @XmlElement(required = false)
     private String validityPeriod;
 
-    public String getApplicationName() {
-        return applicationName;
-    }
-
-    public void setApiApplicationName(String apiApplicationName) {
-        this.applicationName = apiApplicationName;
-    }
-
     public String[] getTags() {
         return tags;
     }
diff --git a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/webapp/META-INF/permissions.xml b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/webapp/META-INF/permissions.xml
index 9c41774ce57..2d907f170ec 100644
--- a/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/webapp/META-INF/permissions.xml
+++ b/components/apimgt-extensions/org.wso2.carbon.apimgt.application.extension.api/src/main/webapp/META-INF/permissions.xml
@@ -37,16 +37,9 @@
     </Permission>
     <Permission>
         <name>Register application</name>
-        <path>/manage/api/subscribe</path>
+        <path>/device-mgt/device/api/subscribe</path>
         <url>/register</url>
         <method>POST</method>
         <scope>application_user</scope>
     </Permission>
-    <Permission>
-        <name>Delete application</name>
-        <path>/manage/api/subscribe</path>
-        <url>/unregister</url>
-        <method>DELETE</method>
-        <scope>application_user</scope>
-    </Permission>
 </PermissionConfiguration>
\ No newline at end of file
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/modules/init.js b/components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/modules/init.js
index 50cbba4dca1..457e4e1b08e 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/modules/init.js
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/modules/init.js
@@ -30,11 +30,12 @@ application.put("carbonServer", carbonServer);
 
 var permissions = {
     "/permission/admin/Login": ["ui.execute"],
-    "/permission/admin/manage/api/subscribe": ["ui.execute"]
+    "/permission/admin/device-mgt/device/api/subscribe": ["ui.execute"]
 };
 
 var adminPermissions = {
-    "/permission/admin": ["ui.execute"]
+    "/permission/admin/device-mgt": ["ui.execute"],
+	"/permission/admin/manage/api": ["ui.execute"]
 };
 
 //On Startup, admin user will get both roles: devicemgt-admin and devicemgt-user