diff --git a/400-SOURCECODE/AIAHTML5.API/Constants/AIAConstants.cs b/400-SOURCECODE/AIAHTML5.API/Constants/AIAConstants.cs
index ae8779e..2b9b559 100644
--- a/400-SOURCECODE/AIAHTML5.API/Constants/AIAConstants.cs
+++ b/400-SOURCECODE/AIAHTML5.API/Constants/AIAConstants.cs
@@ -10,10 +10,10 @@ namespace AIAHTML5.API.Constants
         public const string ERROR_IN_FECTHING_DETAILS = "Error in fecthing details.";
         public const string USER_NOT_FOUND = "User not found.";
         public const string MAIL_NOT_SENT = "Mail not sent.";
-        public const string MAIL_SENT = "Mail sent.";
-        public const string EXCEPTION_OCCURED = "We are facing some issue. Please try to login after sometime.";
-        public const string EXCEPTION_IN_AIAHTML5_MAIL_SUBJECT = "Exception Occuredin AIAHTML5.";
-        public const string SQL_CONNECTION_ERROR = "We are unable to connect with database. Please contact customer support.";
+        public const string MAIL_SENT = "Mail sent.";
+        public const string EXCEPTION_OCCURED = "We are facing some issue. Please try to login after sometime.";
+        public const string EXCEPTION_IN_AIAHTML5_MAIL_SUBJECT = "Exception Occuredin AIAHTML5.";
+        public const string SQL_CONNECTION_ERROR = "We are unable to connect with database. Please contact customer support.";
         public const string SQL_CONNECTION_ERROR_MAIL_SUBJECT = "SQL Connection error in AIAHTML5.";
         public const string KEY_ID = "id";
         public const string KEY_TITLE = "title";
@@ -36,10 +36,13 @@ namespace AIAHTML5.API.Constants
 
         public const string USER_UNBLOCK_SUCCESS = "User unblocked";
         public const string USER_UNBLOCK_FAILED = "Unblock operation failed";
-        public const string UNABLE_TO_UNBLOCK = "We are unable to unblock. Please try after sometime.";
-
-        public const string FORGOT_USERID_EMAIL_SUBJECT = "UserID recovery mail for:";
-        public const string FORGOT_PASSWORD_EMAIL_SUBJECT = "Password recovery mail for:";
+        public const string UNABLE_TO_UNBLOCK = "We are unable to unblock. Please try after sometime.";
+
+        public const string FORGOT_USERID_EMAIL_SUBJECT = "UserID recovery mail for:";
+        public const string FORGOT_PASSWORD_EMAIL_SUBJECT = "Password recovery mail for:";
         public const string UNBLOCK_USER_EMAIL_SUBJECT = "Unblock user request mail for:";
+        public const string LAB_EXERCISE_SAVE_SUCCESS = "Your lab exercise attempt is saved successfully.";
+        public const string LAB_EXERCISE_SAVE_FAILURE = "We are unable to save your lab exercise attempt, please try again.";
+
     }
 }
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