diff --git a/crates/hyperswitch_connectors/src/connectors/nuvei/transformers.rs b/crates/hyperswitch_connectors/src/connectors/nuvei/transformers.rs
index 6d4b27f17e..3e811b7ddd 100644
--- a/crates/hyperswitch_connectors/src/connectors/nuvei/transformers.rs
+++ b/crates/hyperswitch_connectors/src/connectors/nuvei/transformers.rs
@@ -62,6 +62,11 @@ fn to_boolean(string: String) -> bool {
     }
 }
 
+// The dimensions of the challenge window for full screen.
+const CHALLENGE_WINDOW_SIZE: &str = "05";
+// The challenge preference for the challenge flow.
+const CHALLENGE_PREFERNCE: &str = "01";
+
 trait NuveiAuthorizePreprocessingCommon {
     fn get_browser_info(&self) -> Option<BrowserInformation>;
     fn get_related_transaction_id(&self) -> Option<String>;
@@ -527,6 +532,7 @@ pub struct V2AdditionalParams {
     pub rebill_expiry: Option<String>,
     /// Recurring Frequency in days
     pub rebill_frequency: Option<String>,
+    pub challenge_preference: Option<String>,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize)]
@@ -563,7 +569,7 @@ pub struct NuveiACSResponse {
     pub message_type: String,
     pub message_version: String,
     pub trans_status: Option<LiabilityShift>,
-    pub message_extension: Vec<MessageExtensionAttribute>,
+    pub message_extension: Option<Vec<MessageExtensionAttribute>>,
     pub acs_signed_content: Option<serde_json::Value>,
 }
 
@@ -1197,11 +1203,22 @@ where
                         ),
                         rebill_frequency: Some(mandate_meta.frequency),
                         challenge_window_size: None,
+                        challenge_preference: None,
                     }),
                     item.request.get_customer_id_required(),
                 )
             }
-            _ => (None, None, None),
+            // non mandate transactions
+            _ => (
+                None,
+                Some(V2AdditionalParams {
+                    rebill_expiry: None,
+                    rebill_frequency: None,
+                    challenge_window_size: Some(CHALLENGE_WINDOW_SIZE.to_string()),
+                    challenge_preference: Some(CHALLENGE_PREFERNCE.to_string()),
+                }),
+                None,
+            ),
         };
     let three_d = if item.is_three_ds() {
         let browser_details = match &browser_information {
@@ -1277,14 +1294,18 @@ impl TryFrom<(&types::PaymentsCompleteAuthorizeRouterData, Secret<String>)>
     ) -> Result<Self, Self::Error> {
         let item = data.0;
         let request_data = match item.request.payment_method_data.clone() {
-            Some(PaymentMethodData::Card(card)) => Ok(Self {
-                payment_option: PaymentOption::from(NuveiCardDetails {
-                    card,
-                    three_d: None,
-                    card_holder_name: item.get_optional_billing_full_name(),
-                }),
-                ..Default::default()
-            }),
+            Some(PaymentMethodData::Card(card)) => {
+                let device_details = DeviceDetails::foreign_try_from(&item.request.browser_info)?;
+                Ok(Self {
+                    payment_option: PaymentOption::from(NuveiCardDetails {
+                        card,
+                        three_d: None,
+                        card_holder_name: item.get_optional_billing_full_name(),
+                    }),
+                    device_details,
+                    ..Default::default()
+                })
+            }
             Some(PaymentMethodData::Wallet(..))
             | Some(PaymentMethodData::PayLater(..))
             | Some(PaymentMethodData::BankDebit(..))
@@ -1319,6 +1340,7 @@ impl TryFrom<(&types::PaymentsCompleteAuthorizeRouterData, Secret<String>)>
         Ok(Self {
             related_transaction_id: request_data.related_transaction_id,
             payment_option: request_data.payment_option,
+            device_details: request_data.device_details,
             ..request
         })
     }
diff --git a/crates/hyperswitch_domain_models/src/router_request_types/authentication.rs b/crates/hyperswitch_domain_models/src/router_request_types/authentication.rs
index a26d0c7689..1c6977ac5c 100644
--- a/crates/hyperswitch_domain_models/src/router_request_types/authentication.rs
+++ b/crates/hyperswitch_domain_models/src/router_request_types/authentication.rs
@@ -75,7 +75,7 @@ pub struct MessageExtensionAttribute {
     pub id: String,
     pub name: String,
     pub criticality_indicator: bool,
-    pub data: String,
+    pub data: serde_json::Value,
 }
 
 #[derive(Clone, Default, Debug)]
diff --git a/cypress-tests/cypress/e2e/configs/Payment/Nuvei.js b/cypress-tests/cypress/e2e/configs/Payment/Nuvei.js
index ed5a964183..fe3d4e870b 100644
--- a/cypress-tests/cypress/e2e/configs/Payment/Nuvei.js
+++ b/cypress-tests/cypress/e2e/configs/Payment/Nuvei.js
@@ -183,7 +183,7 @@ export const connectorDetails = {
         body: {
           status: "requires_customer_action",
           setup_future_usage: "on_session",
-          payment_method_data: payment_method_data_3ds,
+          // we are removing payment_method_data from the response as authentication_data is different every time.
         },
       },
     },