diff --git a/avni-server-api/src/main/java/org/avni/server/importer/batch/csv/writer/SubjectWriter.java b/avni-server-api/src/main/java/org/avni/server/importer/batch/csv/writer/SubjectWriter.java
index e2ce3c00e..0ff1712b2 100644
--- a/avni-server-api/src/main/java/org/avni/server/importer/batch/csv/writer/SubjectWriter.java
+++ b/avni-server-api/src/main/java/org/avni/server/importer/batch/csv/writer/SubjectWriter.java
@@ -95,7 +95,8 @@ private void write(Row row, String type, String locationHierarchy) throws Except
         setFirstName(row, individual, allErrorMsgs);
         if (subjectType.isAllowMiddleName())
             individual.setMiddleName(row.get(SubjectHeadersCreator.middleName));
-        individual.setLastName(row.get(SubjectHeadersCreator.lastName));
+        if (subjectType.isPerson())
+            setLastName(row, individual, allErrorMsgs);
         setProfilePicture(subjectType, individual, row, allErrorMsgs);
         if (subjectType.isPerson())
             setDateOfBirth(individual, row, allErrorMsgs);
@@ -208,4 +209,12 @@ private void setGender(Individual individual, Row row, List<String> allErrorMsgs
         }
         individual.setGender(gender);
     }
+    private static void setLastName(Row row, Individual individual, List<String> allErrorMsgs) {
+        String lastName = row.get(SubjectHeadersCreator.lastName);
+        if (!StringUtils.hasText(lastName)) {
+            allErrorMsgs.add(String.format("Value required for mandatory field: '%s'", SubjectHeadersCreator.lastName));
+            return;
+        }
+        individual.setLastName(lastName);
+    }
 }
diff --git a/avni-server-api/src/test/java/org/avni/server/importer/batch/csv/writer/SubjectWriterIntegrationTest.java b/avni-server-api/src/test/java/org/avni/server/importer/batch/csv/writer/SubjectWriterIntegrationTest.java
index a4108b41a..1d363d69d 100644
--- a/avni-server-api/src/test/java/org/avni/server/importer/batch/csv/writer/SubjectWriterIntegrationTest.java
+++ b/avni-server-api/src/test/java/org/avni/server/importer/batch/csv/writer/SubjectWriterIntegrationTest.java
@@ -380,7 +380,35 @@ public void missingMandatoryCoreValues() {
                 "qg text",
                 "456",
                 "789");
-        failure(validHeader(), dataRow, "None of the expected address levels provided. Expected one of: [District], value required for mandatory field: 'date of birth', value required for mandatory field: 'date of registration', value required for mandatory field: 'first name', value required for mandatory field: 'gender'");
+        failure(validHeader(), dataRow, "None of the expected address levels provided. Expected one of: [District], value required for mandatory field: 'date of birth', value required for mandatory field: 'date of registration', value required for mandatory field: 'first name', value required for mandatory field: 'gender', value required for mandatory field: 'last name'");
+    }
+
+    @Test
+    public void missingLastName() {
+        organisationConfigService.saveRegistrationLocation(district, subjectType);
+        String[] dataRow = dataRow("ABCD",
+            "SubjectType1",
+            "2020-01-01",
+            "21.5135243,85.6731848",
+            "John",
+            "",
+            "1990-01-01",
+            "true",
+            "Male",
+            "",
+            "Bihar",
+            "District1",
+            "SSC Answer 1",
+            "\"MSC Answer 1\", \"MSC Answer 2\"",
+            "2020-01-01",
+            "text",
+            "123",
+            "some notes",
+            "\"MSDC Answer 1\", \"MSDC Answer 2\"",
+            "qg text",
+            "456",
+            "789");
+        failure(validHeader(), dataRow, "value required for mandatory field: 'Last Name'");
     }
 
     @Test