diff --git a/smart_service/apis/app_user_login.py b/smart_service/apis/app_user_login.py
index 5c528db..285e5a1 100644
--- a/smart_service/apis/app_user_login.py
+++ b/smart_service/apis/app_user_login.py
@@ -414,6 +414,30 @@ def grant_user_access(userdata=None, iid=None):
     except Exception as e1:
         return {'status': 0, 'error': "Invalid Inputs"}
 
+@frappe.whitelist(allow_guest=True)
+def data_invalidation(email, device_id, iid=None):
+    rate_res = custom_rate_limit(limit=5, seconds=15)
+    if rate_res != 1:
+        return rate_res
+    try:
+        # User validation
+        frappe.set_user("Administrator")
+        user_name = frappe.db.sql('''SELECT name FROM {0}.tabUser where email='{1}';'''.format(
+            current_db_name, email), as_dict=1)
+
+        token_details = []
+        if user_name:
+
+            """ New Refresh token update """
+            access_token = generate_access_token(user_name[0]['name'])
+            refresh_token = generate_refresh_token()
+            token_details = update_tokens_in_doc(
+                user_name[0]['name'], access_token, refresh_token)
+
+        return {'status': 1, 'data': token_details, 'error': None}
+
+    except Exception as e1:
+        return {'status': 0, 'data': [], 'error': 'Failed to verify user'}
 
 @frappe.whitelist(allow_guest=True)
 def new_app_user_validation(usr=None, pwd=None, iid=None, device_data=None):
diff --git a/smart_service/apis/master_api.py b/smart_service/apis/master_api.py
index b2a8422..7cae846 100644
--- a/smart_service/apis/master_api.py
+++ b/smart_service/apis/master_api.py
@@ -296,3 +296,21 @@ def check_pub_type(iid):
     if not device_pub_type:
         return False
     return device_pub_type[0][0]
+
+@frappe.whitelist(methods=['POST'])
+def variant(LSD):
+    date_format = "%Y-%m-%d %H:%M:%S.%f"
+    if LSD != "":
+        try:
+            datetime.datetime.strptime(LSD, date_format)
+        except:
+            return {"status": 0, "error": " 'LSD' format error"}
+    try:
+        data = frappe.db.sql('''
+                        select v.myid as variant_id,vm.name,vm.vehicle,vm.variant,vm.fuel,vm.transmission,vm.drive,vm.active_status 
+                            FROM `tabVariant Mapping` vm left join tabVariant v on v.name = vm.variant where vm.modified >='';''', as_dict=1)
+        return {"status": 1, "error": None, 'data': data}
+
+    except Exception as e:
+        frappe.local.response['http_status_code'] = 400
+        return {"status": 0, "error": e, 'data': None}
\ No newline at end of file