Issue:
Bug: [FEATURE] Add new column in PaymentAttempt for storing mandate_data 



### Feature Description

Add new column in PaymentAttempt for storing mandate_data to be future compatible 

### Possible Implementation

Add a column mandate_data which would be a struct , in order to store the mandate details for a mandate in Payment Attempt table

### Have you spent some time checking if this feature request has been raised before?

- [X] I checked and didn't find a similar issue

### Have you read the Contributing Guidelines?

- [X] I have read the [Contributing Guidelines](https://github.com/juspay/hyperswitch/blob/main/docs/CONTRIBUTING.md)

### Are you willing to submit a PR?

Yes, I am willing to submit a PR!

Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [x] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
To make the mandate_details forward compatible , instead of storing update mandate id in mandate details we store it in the new column mandate data.  Currently in mandate_data column we only store update_mandate_id


### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

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1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
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## Motivation and Context
<!--
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If it fixes an open issue, please link to the issue here.

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## How did you test it?

- Create an MA and an MCA
- Make a mandate_payment 
- And then make an update_mandate_payment with the mandate_id generated in the previous step
-  The card would be updated and reflected when we do list mandate

<img width="1728" alt="Screenshot 2024-02-09 at 1 08 48 PM" src="https://github.com/juspay/hyperswitch/assets/55580080/13fdc4ba-479f-4f9f-ad65-56c5c14d9dbf">

![Screenshot 2024-02-09 at 1 11 56 PM](https://github.com/juspay/hyperswitch/assets/55580080/8f22d291-4c06-4bf5-a3cb-d6edf6a43f64)

<img width="1728" alt="Screenshot 2024-02-09 at 1 12 35 PM" src="https://github.com/juspay/hyperswitch/assets/55580080/74e4cb0f-aae3-451e-9b7a-647da8167c67">

![Screenshot 2024-02-09 at 1 13 19 PM](https://github.com/juspay/hyperswitch/assets/55580080/61594860-7353-4ebb-ad5e-a8a565331cb0)


## Checklist
<!-- Put an `x` in the boxes that apply -->

- [x] I formatted the code `cargo +nightly fmt --all`
- [x] I addressed lints thrown by `cargo clippy`
- [ ] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Testing:
- Create an MA and an MCA
- Make a mandate_payment 
- And then make an update_mandate_payment with the mandate_id generated in the previous step
-  The card would be updated and reflected when we do list mandate

<img width="1728" alt="Screenshot 2024-02-09 at 1 08 48 PM" src="https://github.com/juspay/hyperswitch/assets/55580080/13fdc4ba-479f-4f9f-ad65-56c5c14d9dbf">

![Screenshot 2024-02-09 at 1 11 56 PM](https://github.com/juspay/hyperswitch/assets/55580080/8f22d291-4c06-4bf5-a3cb-d6edf6a43f64)

<img width="1728" alt="Screenshot 2024-02-09 at 1 12 35 PM" src="https://github.com/juspay/hyperswitch/assets/55580080/74e4cb0f-aae3-451e-9b7a-647da8167c67">

![Screenshot 2024-02-09 at 1 13 19 PM](https://github.com/juspay/hyperswitch/assets/55580080/61594860-7353-4ebb-ad5e-a8a565331cb0)

Patch:
diff --git a/crates/data_models/src/mandates.rs b/crates/data_models/src/mandates.rs
index 319a78cf661..b4478f84ee9 100644
--- a/crates/data_models/src/mandates.rs
+++ b/crates/data_models/src/mandates.rs
@@ -13,7 +13,6 @@ use time::PrimitiveDateTime;
 #[serde(rename_all = "snake_case")]
 pub struct MandateDetails {
     pub update_mandate_id: Option<String>,
-    pub mandate_type: Option<MandateDataType>,
 }
 
 #[derive(serde::Serialize, serde::Deserialize, Debug, Clone, PartialEq, Eq)]
@@ -23,13 +22,6 @@ pub enum MandateDataType {
     MultiUse(Option<MandateAmountData>),
 }
 
-#[derive(serde::Serialize, serde::Deserialize, Debug, Clone, PartialEq, Eq)]
-#[serde(rename_all = "snake_case")]
-#[serde(untagged)]
-pub enum MandateTypeDetails {
-    MandateType(MandateDataType),
-    MandateDetails(MandateDetails),
-}
 #[derive(Clone, Debug, serde::Serialize, serde::Deserialize, PartialEq, Eq)]
 pub struct MandateAmountData {
     pub amount: i64,
diff --git a/crates/data_models/src/payments/payment_attempt.rs b/crates/data_models/src/payments/payment_attempt.rs
index 2b5705c155b..084b0ef251e 100644
--- a/crates/data_models/src/payments/payment_attempt.rs
+++ b/crates/data_models/src/payments/payment_attempt.rs
@@ -4,7 +4,11 @@ use serde::{Deserialize, Serialize};
 use time::PrimitiveDateTime;
 
 use super::PaymentIntent;
-use crate::{errors, mandates::MandateTypeDetails, ForeignIDRef};
+use crate::{
+    errors,
+    mandates::{MandateDataType, MandateDetails},
+    ForeignIDRef,
+};
 
 #[async_trait::async_trait]
 pub trait PaymentAttemptInterface {
@@ -143,7 +147,7 @@ pub struct PaymentAttempt {
     pub straight_through_algorithm: Option<serde_json::Value>,
     pub preprocessing_step_id: Option<String>,
     // providing a location to store mandate details intermediately for transaction
-    pub mandate_details: Option<MandateTypeDetails>,
+    pub mandate_details: Option<MandateDataType>,
     pub error_reason: Option<String>,
     pub multiple_capture_count: Option<i16>,
     // reference to the payment at connector side
@@ -155,6 +159,7 @@ pub struct PaymentAttempt {
     pub merchant_connector_id: Option<String>,
     pub unified_code: Option<String>,
     pub unified_message: Option<String>,
+    pub mandate_data: Option<MandateDetails>,
 }
 
 impl PaymentAttempt {
@@ -221,7 +226,7 @@ pub struct PaymentAttemptNew {
     pub business_sub_label: Option<String>,
     pub straight_through_algorithm: Option<serde_json::Value>,
     pub preprocessing_step_id: Option<String>,
-    pub mandate_details: Option<MandateTypeDetails>,
+    pub mandate_details: Option<MandateDataType>,
     pub error_reason: Option<String>,
     pub connector_response_reference_id: Option<String>,
     pub multiple_capture_count: Option<i16>,
@@ -232,6 +237,7 @@ pub struct PaymentAttemptNew {
     pub merchant_connector_id: Option<String>,
     pub unified_code: Option<String>,
     pub unified_message: Option<String>,
+    pub mandate_data: Option<MandateDetails>,
 }
 
 impl PaymentAttemptNew {
diff --git a/crates/diesel_models/src/enums.rs b/crates/diesel_models/src/enums.rs
index babffdbc4a8..d65f6c5efa9 100644
--- a/crates/diesel_models/src/enums.rs
+++ b/crates/diesel_models/src/enums.rs
@@ -174,20 +174,8 @@ use diesel::{
 #[serde(rename_all = "snake_case")]
 pub struct MandateDetails {
     pub update_mandate_id: Option<String>,
-    pub mandate_type: Option<MandateDataType>,
 }
-
-#[derive(
-    serde::Serialize, serde::Deserialize, Debug, Clone, PartialEq, Eq, FromSqlRow, AsExpression,
-)]
-#[diesel(sql_type = Jsonb)]
-#[serde(rename_all = "snake_case")]
-pub enum MandateDataType {
-    SingleUse(MandateAmountData),
-    MultiUse(Option<MandateAmountData>),
-}
-
-impl<DB: Backend> FromSql<Jsonb, DB> for MandateDataType
+impl<DB: Backend> FromSql<Jsonb, DB> for MandateDetails
 where
     serde_json::Value: FromSql<Jsonb, DB>,
 {
@@ -197,7 +185,7 @@ where
     }
 }
 
-impl ToSql<Jsonb, diesel::pg::Pg> for MandateDataType
+impl ToSql<Jsonb, diesel::pg::Pg> for MandateDetails
 where
     serde_json::Value: ToSql<Jsonb, diesel::pg::Pg>,
 {
@@ -210,19 +198,17 @@ where
         <serde_json::Value as ToSql<Jsonb, diesel::pg::Pg>>::to_sql(&value, &mut out.reborrow())
     }
 }
-
 #[derive(
     serde::Serialize, serde::Deserialize, Debug, Clone, PartialEq, Eq, FromSqlRow, AsExpression,
 )]
 #[diesel(sql_type = Jsonb)]
-#[serde(untagged)]
 #[serde(rename_all = "snake_case")]
-pub enum MandateTypeDetails {
-    MandateType(MandateDataType),
-    MandateDetails(MandateDetails),
+pub enum MandateDataType {
+    SingleUse(MandateAmountData),
+    MultiUse(Option<MandateAmountData>),
 }
 
-impl<DB: Backend> FromSql<Jsonb, DB> for MandateTypeDetails
+impl<DB: Backend> FromSql<Jsonb, DB> for MandateDataType
 where
     serde_json::Value: FromSql<Jsonb, DB>,
 {
@@ -231,7 +217,8 @@ where
         Ok(serde_json::from_value(value)?)
     }
 }
-impl ToSql<Jsonb, diesel::pg::Pg> for MandateTypeDetails
+
+impl ToSql<Jsonb, diesel::pg::Pg> for MandateDataType
 where
     serde_json::Value: ToSql<Jsonb, diesel::pg::Pg>,
 {
diff --git a/crates/diesel_models/src/payment_attempt.rs b/crates/diesel_models/src/payment_attempt.rs
index d286cc312bc..9af4595c9f4 100644
--- a/crates/diesel_models/src/payment_attempt.rs
+++ b/crates/diesel_models/src/payment_attempt.rs
@@ -51,7 +51,7 @@ pub struct PaymentAttempt {
     pub straight_through_algorithm: Option<serde_json::Value>,
     pub preprocessing_step_id: Option<String>,
     // providing a location to store mandate details intermediately for transaction
-    pub mandate_details: Option<storage_enums::MandateTypeDetails>,
+    pub mandate_details: Option<storage_enums::MandateDataType>,
     pub error_reason: Option<String>,
     pub multiple_capture_count: Option<i16>,
     // reference to the payment at connector side
@@ -64,6 +64,7 @@ pub struct PaymentAttempt {
     pub unified_code: Option<String>,
     pub unified_message: Option<String>,
     pub net_amount: Option<i64>,
+    pub mandate_data: Option<storage_enums::MandateDetails>,
 }
 
 impl PaymentAttempt {
@@ -126,7 +127,7 @@ pub struct PaymentAttemptNew {
     pub business_sub_label: Option<String>,
     pub straight_through_algorithm: Option<serde_json::Value>,
     pub preprocessing_step_id: Option<String>,
-    pub mandate_details: Option<storage_enums::MandateTypeDetails>,
+    pub mandate_details: Option<storage_enums::MandateDataType>,
     pub error_reason: Option<String>,
     pub connector_response_reference_id: Option<String>,
     pub multiple_capture_count: Option<i16>,
@@ -138,6 +139,7 @@ pub struct PaymentAttemptNew {
     pub unified_code: Option<String>,
     pub unified_message: Option<String>,
     pub net_amount: Option<i64>,
+    pub mandate_data: Option<storage_enums::MandateDetails>,
 }
 
 impl PaymentAttemptNew {
diff --git a/crates/diesel_models/src/schema.rs b/crates/diesel_models/src/schema.rs
index c9887e1770f..6c28677432b 100644
--- a/crates/diesel_models/src/schema.rs
+++ b/crates/diesel_models/src/schema.rs
@@ -688,6 +688,7 @@ diesel::table! {
         #[max_length = 1024]
         unified_message -> Nullable<Varchar>,
         net_amount -> Nullable<Int8>,
+        mandate_data -> Nullable<Jsonb>,
     }
 }
 
diff --git a/crates/diesel_models/src/user/sample_data.rs b/crates/diesel_models/src/user/sample_data.rs
index 5a2226f0676..6a6d4c52c97 100644
--- a/crates/diesel_models/src/user/sample_data.rs
+++ b/crates/diesel_models/src/user/sample_data.rs
@@ -5,7 +5,11 @@ use common_enums::{
 use serde::{Deserialize, Serialize};
 use time::PrimitiveDateTime;
 
-use crate::{enums::MandateTypeDetails, schema::payment_attempt, PaymentAttemptNew};
+use crate::{
+    enums::{MandateDataType, MandateDetails},
+    schema::payment_attempt,
+    PaymentAttemptNew,
+};
 
 #[derive(
     Clone, Debug, Default, diesel::Insertable, router_derive::DebugAsDisplay, Serialize, Deserialize,
@@ -50,7 +54,7 @@ pub struct PaymentAttemptBatchNew {
     pub business_sub_label: Option<String>,
     pub straight_through_algorithm: Option<serde_json::Value>,
     pub preprocessing_step_id: Option<String>,
-    pub mandate_details: Option<MandateTypeDetails>,
+    pub mandate_details: Option<MandateDataType>,
     pub error_reason: Option<String>,
     pub connector_response_reference_id: Option<String>,
     pub connector_transaction_id: Option<String>,
@@ -63,6 +67,7 @@ pub struct PaymentAttemptBatchNew {
     pub unified_code: Option<String>,
     pub unified_message: Option<String>,
     pub net_amount: Option<i64>,
+    pub mandate_data: Option<MandateDetails>,
 }
 
 #[allow(dead_code)]
@@ -116,6 +121,7 @@ impl PaymentAttemptBatchNew {
             unified_code: self.unified_code,
             unified_message: self.unified_message,
             net_amount: self.net_amount,
+            mandate_data: self.mandate_data,
         }
     }
 }
diff --git a/crates/router/src/core/payment_methods/cards.rs b/crates/router/src/core/payment_methods/cards.rs
index 7b505e7c01c..5d287a89f62 100644
--- a/crates/router/src/core/payment_methods/cards.rs
+++ b/crates/router/src/core/payment_methods/cards.rs
@@ -1837,17 +1837,8 @@ pub async fn list_payment_methods(
             merchant_name: merchant_account.merchant_name,
             payment_type,
             payment_methods: payment_method_responses,
-            mandate_payment: payment_attempt
-                .and_then(|inner| inner.mandate_details)
-                .and_then(|man_type_details| match man_type_details {
-                    data_models::mandates::MandateTypeDetails::MandateType(mandate_type) => {
-                        Some(mandate_type)
-                    }
-                    data_models::mandates::MandateTypeDetails::MandateDetails(mandate_details) => {
-                        mandate_details.mandate_type
-                    }
-                })
-                .map(|d| match d {
+            mandate_payment: payment_attempt.and_then(|inner| inner.mandate_details).map(
+                |d| match d {
                     data_models::mandates::MandateDataType::SingleUse(i) => {
                         api::MandateType::SingleUse(api::MandateAmountData {
                             amount: i.amount,
@@ -1869,7 +1860,8 @@ pub async fn list_payment_methods(
                     data_models::mandates::MandateDataType::MultiUse(None) => {
                         api::MandateType::MultiUse(None)
                     }
-                }),
+                },
+            ),
             show_surcharge_breakup_screen: merchant_surcharge_configs
                 .show_surcharge_breakup_screen
                 .unwrap_or_default(),
@@ -2079,28 +2071,20 @@ pub async fn filter_payment_methods(
                         })?;
                     let filter7 = payment_attempt
                         .and_then(|attempt| attempt.mandate_details.as_ref())
-                        .map(|mandate_details| {
-                            let (mandate_type_present, update_mandate_id_present) =
-                                match mandate_details {
-                                    data_models::mandates::MandateTypeDetails::MandateType(_) => {
-                                        (true, false)
-                                    }
-                                    data_models::mandates::MandateTypeDetails::MandateDetails(
-                                        mand_details,
-                                    ) => (
-                                        mand_details.mandate_type.is_some(),
-                                        mand_details.update_mandate_id.is_some(),
-                                    ),
-                                };
-
-                            if mandate_type_present {
-                                filter_pm_based_on_supported_payments_for_mandate(
-                                    supported_payment_methods_for_mandate,
-                                    &payment_method,
-                                    &payment_method_object.payment_method_type,
-                                    connector_variant,
-                                )
-                            } else if update_mandate_id_present {
+                        .map(|_mandate_details| {
+                            filter_pm_based_on_supported_payments_for_mandate(
+                                supported_payment_methods_for_mandate,
+                                &payment_method,
+                                &payment_method_object.payment_method_type,
+                                connector_variant,
+                            )
+                        })
+                        .unwrap_or(true);
+
+                    let filter8 = payment_attempt
+                        .and_then(|attempt| attempt.mandate_data.as_ref())
+                        .map(|mandate_detail| {
+                            if mandate_detail.update_mandate_id.is_some() {
                                 filter_pm_based_on_update_mandate_support_for_connector(
                                     supported_payment_methods_for_update_mandate,
                                     &payment_method,
@@ -2121,7 +2105,15 @@ pub async fn filter_payment_methods(
                         payment_method,
                     );
 
-                    if filter && filter2 && filter3 && filter4 && filter5 && filter6 && filter7 {
+                    if filter
+                        && filter2
+                        && filter3
+                        && filter4
+                        && filter5
+                        && filter6
+                        && filter7
+                        && filter8
+                    {
                         resp.push(response_pm_type);
                     }
                 }
diff --git a/crates/router/src/core/payments/helpers.rs b/crates/router/src/core/payments/helpers.rs
index 7ec1f5e9213..c6ba4a4e987 100644
--- a/crates/router/src/core/payments/helpers.rs
+++ b/crates/router/src/core/payments/helpers.rs
@@ -3201,6 +3201,7 @@ impl AttemptType {
             unified_code: None,
             unified_message: None,
             net_amount: old_payment_attempt.amount,
+            mandate_data: old_payment_attempt.mandate_data,
         }
     }
 
diff --git a/crates/router/src/core/payments/operations/payment_confirm.rs b/crates/router/src/core/payments/operations/payment_confirm.rs
index 54ec47ecea5..8349f050135 100644
--- a/crates/router/src/core/payments/operations/payment_confirm.rs
+++ b/crates/router/src/core/payments/operations/payment_confirm.rs
@@ -441,28 +441,11 @@ impl<F: Send + Clone, Ctx: PaymentMethodRetrieve>
 
         // The operation merges mandate data from both request and payment_attempt
         setup_mandate = setup_mandate.map(|mut sm| {
-            sm.mandate_type = payment_attempt
-                .mandate_details
-                .clone()
-                .and_then(|mandate| match mandate {
-                    data_models::mandates::MandateTypeDetails::MandateType(mandate_type) => {
-                        Some(mandate_type)
-                    }
-                    data_models::mandates::MandateTypeDetails::MandateDetails(mandate_details) => {
-                        mandate_details.mandate_type
-                    }
-                })
-                .or(sm.mandate_type);
+            sm.mandate_type = payment_attempt.mandate_details.clone().or(sm.mandate_type);
             sm.update_mandate_id = payment_attempt
-                .mandate_details
+                .mandate_data
                 .clone()
-                .and_then(|mandate| match mandate {
-                    data_models::mandates::MandateTypeDetails::MandateType(_) => None,
-                    data_models::mandates::MandateTypeDetails::MandateDetails(update_id) => {
-                        Some(update_id.update_mandate_id)
-                    }
-                })
-                .flatten()
+                .and_then(|mandate| mandate.update_mandate_id)
                 .or(sm.update_mandate_id);
             sm
         });
diff --git a/crates/router/src/core/payments/operations/payment_create.rs b/crates/router/src/core/payments/operations/payment_create.rs
index 8d37fc486c5..0f581be3089 100644
--- a/crates/router/src/core/payments/operations/payment_create.rs
+++ b/crates/router/src/core/payments/operations/payment_create.rs
@@ -4,7 +4,7 @@ use api_models::enums::FrmSuggestion;
 use async_trait::async_trait;
 use common_utils::ext_traits::{AsyncExt, Encode, ValueExt};
 use data_models::{
-    mandates::{MandateData, MandateDetails, MandateTypeDetails},
+    mandates::{MandateData, MandateDetails},
     payments::payment_attempt::PaymentAttempt,
 };
 use diesel_models::ephemeral_key;
@@ -733,27 +733,17 @@ impl PaymentCreate {
             Err(errors::ApiErrorResponse::InvalidRequestData {message:"Only one field out of 'mandate_type' and 'update_mandate_id' was expected, found both".to_string()})?
         }
 
-        let mandate_details = if request.mandate_data.is_none() {
-            None
-        } else if let Some(update_id) = request
+        let mandate_data = if let Some(update_id) = request
             .mandate_data
             .as_ref()
             .and_then(|inner| inner.update_mandate_id.clone())
         {
-            let mandate_data = MandateDetails {
+            let mandate_details = MandateDetails {
                 update_mandate_id: Some(update_id),
-                mandate_type: None,
             };
-            Some(MandateTypeDetails::MandateDetails(mandate_data))
+            Some(mandate_details)
         } else {
-            let mandate_data = MandateDetails {
-                update_mandate_id: None,
-                mandate_type: request
-                    .mandate_data
-                    .as_ref()
-                    .and_then(|inner| inner.mandate_type.clone().map(Into::into)),
-            };
-            Some(MandateTypeDetails::MandateDetails(mandate_data))
+            None
         };
 
         Ok((
@@ -782,7 +772,11 @@ impl PaymentCreate {
                 business_sub_label: request.business_sub_label.clone(),
                 surcharge_amount,
                 tax_amount,
-                mandate_details,
+                mandate_details: request
+                    .mandate_data
+                    .as_ref()
+                    .and_then(|inner| inner.mandate_type.clone().map(Into::into)),
+                mandate_data,
                 ..storage::PaymentAttemptNew::default()
             },
             additional_pm_data,
diff --git a/crates/storage_impl/src/mock_db/payment_attempt.rs b/crates/storage_impl/src/mock_db/payment_attempt.rs
index 24863ddc568..e60e32227d3 100644
--- a/crates/storage_impl/src/mock_db/payment_attempt.rs
+++ b/crates/storage_impl/src/mock_db/payment_attempt.rs
@@ -147,6 +147,7 @@ impl PaymentAttemptInterface for MockDb {
             merchant_connector_id: payment_attempt.merchant_connector_id,
             unified_code: payment_attempt.unified_code,
             unified_message: payment_attempt.unified_message,
+            mandate_data: payment_attempt.mandate_data,
         };
         payment_attempts.push(payment_attempt.clone());
         Ok(payment_attempt)
diff --git a/crates/storage_impl/src/payments/payment_attempt.rs b/crates/storage_impl/src/payments/payment_attempt.rs
index 6af136c1062..ec19e30c0ec 100644
--- a/crates/storage_impl/src/payments/payment_attempt.rs
+++ b/crates/storage_impl/src/payments/payment_attempt.rs
@@ -2,7 +2,7 @@ use api_models::enums::{AuthenticationType, Connector, PaymentMethod, PaymentMet
 use common_utils::{errors::CustomResult, fallback_reverse_lookup_not_found};
 use data_models::{
     errors,
-    mandates::{MandateAmountData, MandateDataType, MandateDetails, MandateTypeDetails},
+    mandates::{MandateAmountData, MandateDataType, MandateDetails},
     payments::{
         payment_attempt::{
             PaymentAttempt, PaymentAttemptInterface, PaymentAttemptNew, PaymentAttemptUpdate,
@@ -14,8 +14,7 @@ use data_models::{
 use diesel_models::{
     enums::{
         MandateAmountData as DieselMandateAmountData, MandateDataType as DieselMandateType,
-        MandateDetails as DieselMandateDetails, MandateTypeDetails as DieselMandateTypeOrDetails,
-        MerchantStorageScheme,
+        MandateDetails as DieselMandateDetails, MerchantStorageScheme,
     },
     kv,
     payment_attempt::{
@@ -391,6 +390,7 @@ impl<T: DatabaseStore> PaymentAttemptInterface for KVRouterStore<T> {
                     merchant_connector_id: payment_attempt.merchant_connector_id.clone(),
                     unified_code: payment_attempt.unified_code.clone(),
                     unified_message: payment_attempt.unified_message.clone(),
+                    mandate_data: payment_attempt.mandate_data.clone(),
                 };
 
                 let field = format!("pa_{}", created_attempt.attempt_id);
@@ -1016,42 +1016,11 @@ impl DataModelExt for MandateDetails {
     fn to_storage_model(self) -> Self::StorageModel {
         DieselMandateDetails {
             update_mandate_id: self.update_mandate_id,
-            mandate_type: self
-                .mandate_type
-                .map(|mand_type| mand_type.to_storage_model()),
         }
     }
     fn from_storage_model(storage_model: Self::StorageModel) -> Self {
         Self {
             update_mandate_id: storage_model.update_mandate_id,
-            mandate_type: storage_model
-                .mandate_type
-                .map(MandateDataType::from_storage_model),
-        }
-    }
-}
-impl DataModelExt for MandateTypeDetails {
-    type StorageModel = DieselMandateTypeOrDetails;
-
-    fn to_storage_model(self) -> Self::StorageModel {
-        match self {
-            Self::MandateType(mandate_type) => {
-                DieselMandateTypeOrDetails::MandateType(mandate_type.to_storage_model())
-            }
-            Self::MandateDetails(mandate_details) => {
-                DieselMandateTypeOrDetails::MandateDetails(mandate_details.to_storage_model())
-            }
-        }
-    }
-
-    fn from_storage_model(storage_model: Self::StorageModel) -> Self {
-        match storage_model {
-            DieselMandateTypeOrDetails::MandateType(data) => {
-                Self::MandateType(MandateDataType::from_storage_model(data))
-            }
-            DieselMandateTypeOrDetails::MandateDetails(data) => {
-                Self::MandateDetails(MandateDetails::from_storage_model(data))
-            }
         }
     }
 }
@@ -1124,7 +1093,7 @@ impl DataModelExt for PaymentAttempt {
             business_sub_label: self.business_sub_label,
             straight_through_algorithm: self.straight_through_algorithm,
             preprocessing_step_id: self.preprocessing_step_id,
-            mandate_details: self.mandate_details.map(|md| md.to_storage_model()),
+            mandate_details: self.mandate_details.map(|d| d.to_storage_model()),
             error_reason: self.error_reason,
             multiple_capture_count: self.multiple_capture_count,
             connector_response_reference_id: self.connector_response_reference_id,
@@ -1135,6 +1104,7 @@ impl DataModelExt for PaymentAttempt {
             merchant_connector_id: self.merchant_connector_id,
             unified_code: self.unified_code,
             unified_message: self.unified_message,
+            mandate_data: self.mandate_data.map(|d| d.to_storage_model()),
         }
     }
 
@@ -1179,7 +1149,7 @@ impl DataModelExt for PaymentAttempt {
             preprocessing_step_id: storage_model.preprocessing_step_id,
             mandate_details: storage_model
                 .mandate_details
-                .map(MandateTypeDetails::from_storage_model),
+                .map(MandateDataType::from_storage_model),
             error_reason: storage_model.error_reason,
             multiple_capture_count: storage_model.multiple_capture_count,
             connector_response_reference_id: storage_model.connector_response_reference_id,
@@ -1190,6 +1160,9 @@ impl DataModelExt for PaymentAttempt {
             merchant_connector_id: storage_model.merchant_connector_id,
             unified_code: storage_model.unified_code,
             unified_message: storage_model.unified_message,
+            mandate_data: storage_model
+                .mandate_data
+                .map(MandateDetails::from_storage_model),
         }
     }
 }
@@ -1245,6 +1218,7 @@ impl DataModelExt for PaymentAttemptNew {
             merchant_connector_id: self.merchant_connector_id,
             unified_code: self.unified_code,
             unified_message: self.unified_message,
+            mandate_data: self.mandate_data.map(|d| d.to_storage_model()),
         }
     }
 
@@ -1287,7 +1261,7 @@ impl DataModelExt for PaymentAttemptNew {
             preprocessing_step_id: storage_model.preprocessing_step_id,
             mandate_details: storage_model
                 .mandate_details
-                .map(MandateTypeDetails::from_storage_model),
+                .map(MandateDataType::from_storage_model),
             error_reason: storage_model.error_reason,
             connector_response_reference_id: storage_model.connector_response_reference_id,
             multiple_capture_count: storage_model.multiple_capture_count,
@@ -1298,6 +1272,9 @@ impl DataModelExt for PaymentAttemptNew {
             merchant_connector_id: storage_model.merchant_connector_id,
             unified_code: storage_model.unified_code,
             unified_message: storage_model.unified_message,
+            mandate_data: storage_model
+                .mandate_data
+                .map(MandateDetails::from_storage_model),
         }
     }
 }
diff --git a/migrations/2024-02-08-142804_add_mandate_data_payment_attempt/down.sql b/migrations/2024-02-08-142804_add_mandate_data_payment_attempt/down.sql
new file mode 100644
index 00000000000..9d2071f8dda
--- /dev/null
+++ b/migrations/2024-02-08-142804_add_mandate_data_payment_attempt/down.sql
@@ -0,0 +1,2 @@
+-- This file should undo anything in `up.sql`
+ALTER TABLE payment_attempt DROP COLUMN IF EXISTS mandate_data;
diff --git a/migrations/2024-02-08-142804_add_mandate_data_payment_attempt/up.sql b/migrations/2024-02-08-142804_add_mandate_data_payment_attempt/up.sql
new file mode 100644
index 00000000000..31ed6e88fea
--- /dev/null
+++ b/migrations/2024-02-08-142804_add_mandate_data_payment_attempt/up.sql
@@ -0,0 +1,3 @@
+-- Your SQL goes here
+ALTER TABLE payment_attempt
+ADD COLUMN IF NOT EXISTS mandate_data JSONB DEFAULT NULL;
\ No newline at end of file