diff --git a/app/models.py b/app/models.py
index 059a290d..ea055a17 100644
--- a/app/models.py
+++ b/app/models.py
@@ -82,6 +82,7 @@ class QuestionSetMetric(BaseModel):
     num_correct: int
     num_wrong: int
     num_partially_correct: int
+    num_marked_for_review: Optional[int]  # not there for non-assessment
     attempt_rate: float
     accuracy_rate: float
 
@@ -93,6 +94,7 @@ class SessionMetrics(BaseModel):
     total_correct: int
     total_wrong: int
     total_partially_correct: int
+    total_marked_for_review: Optional[int]  # not there for non-assessment
     total_marks: int
 
 
@@ -400,6 +402,7 @@ class SessionAnswer(BaseModel):
     answer: answerType = None
     visited: bool = False
     time_spent: int = None  # in seconds
+    marked_for_review: bool = False
     created_at: datetime = Field(default_factory=datetime.utcnow)
     updated_at: datetime = Field(default_factory=datetime.utcnow)
 
@@ -418,6 +421,7 @@ class UpdateSessionAnswer(BaseModel):
     answer: Optional[answerType]
     visited: Optional[bool]
     time_spent: Optional[int]
+    marked_for_review: Optional[bool]
     updated_at: datetime = Field(default_factory=datetime.utcnow)
 
     class Config:
diff --git a/app/routers/session_answers.py b/app/routers/session_answers.py
index 4017139a..c11c89f0 100644
--- a/app/routers/session_answers.py
+++ b/app/routers/session_answers.py
@@ -91,7 +91,7 @@ async def update_session_answer_in_a_session(
     session_id - the id of the session
     position_index - the position index of the session answer in the session answers array. This corresponds to the position of the question in the quiz
     """
-    log_message = f"Updating session answer for session: {session_id} at position: {position_index}. The answer is {session_answer.answer}. Visited is {session_answer.visited}. Time spent is {session_answer.time_spent} seconds."
+    log_message = f"Updating session answer for session: {session_id} at position: {position_index}. The answer is {session_answer.answer}. Visited is {session_answer.visited}. Time spent is {session_answer.time_spent} seconds. Marked for review status is {session_answer.marked_for_review}."
     session_answer = remove_optional_unset_args(session_answer)
     session_answer = jsonable_encoder(session_answer)
 
diff --git a/app/tests/dummy_data/multiple_question_set_quiz.json b/app/tests/dummy_data/multiple_question_set_quiz.json
index 372246ff..cfbe778d 100644
--- a/app/tests/dummy_data/multiple_question_set_quiz.json
+++ b/app/tests/dummy_data/multiple_question_set_quiz.json
@@ -39,7 +39,7 @@
           "instructions": null,
           "image": {
             "url": "https://plio-prod-assets.s3.ap-south-1.amazonaws.com/images/afbxudrmbl.png",
-            "alt_text": "Image"
+            "alt_text": "Image 1"
           },
           "options": [
             {
diff --git a/app/tests/test_session_answers.py b/app/tests/test_session_answers.py
index 93ba98ef..ad05ddc9 100644
--- a/app/tests/test_session_answers.py
+++ b/app/tests/test_session_answers.py
@@ -56,6 +56,24 @@ def test_update_session_answer_with_only_visited(self):
         # ensure that `answer` is not affected
         assert session_answer["answer"] == self.session_answer["answer"]
 
+    def test_update_session_answer_with_only_marked_for_review(self):
+        new_marked_for_review = True
+        response = self.client.patch(
+            f"{session_answers.router.prefix}/{self.session_id}/{self.session_answer_position_index}",
+            json={"marked_for_review": new_marked_for_review},
+        )
+        assert response.status_code == 200
+        response = self.client.get(
+            f"{session_answers.router.prefix}/{self.session_id}/{self.session_answer_position_index}"
+        )
+        session_answer = json.loads(response.content)
+
+        # ensure that `marked_for_review` has been updated
+        assert session_answer["marked_for_review"] == new_marked_for_review
+
+        # ensure that `answer` is not affected
+        assert session_answer["answer"] == self.session_answer["answer"]
+
     def test_update_session_answers_at_specific_positions(self):
         # updating all session answers