diff --git a/api/Dependencies.toml b/api/Dependencies.toml
index 588f7a5..6867e2a 100644
--- a/api/Dependencies.toml
+++ b/api/Dependencies.toml
@@ -15,6 +15,7 @@ dependencies = [
 	{org = "ballerina", name = "graphql"},
 	{org = "ballerina", name = "io"},
 	{org = "ballerina", name = "log"},
+	{org = "ballerina", name = "regex"},
 	{org = "ballerina", name = "sql"},
 	{org = "ballerina", name = "test"},
 	{org = "ballerina", name = "time"},
@@ -112,7 +113,7 @@ modules = [
 [[package]]
 org = "ballerina"
 name = "http"
-version = "2.10.16"
+version = "2.10.17"
 dependencies = [
 	{org = "ballerina", name = "auth"},
 	{org = "ballerina", name = "cache"},
@@ -313,6 +314,18 @@ dependencies = [
 	{org = "ballerina", name = "jballerina.java"}
 ]
 
+[[package]]
+org = "ballerina"
+name = "regex"
+version = "1.4.3"
+dependencies = [
+	{org = "ballerina", name = "jballerina.java"},
+	{org = "ballerina", name = "lang.string"}
+]
+modules = [
+	{org = "ballerina", packageName = "regex", moduleName = "regex"}
+]
+
 [[package]]
 org = "ballerina"
 name = "sql"
diff --git a/api/calendar_meta_data.bal b/api/calendar_meta_data.bal
new file mode 100644
index 0000000..0edc892
--- /dev/null
+++ b/api/calendar_meta_data.bal
@@ -0,0 +1,51 @@
+public isolated service class CalendarMetaData {
+
+    private CalendarMetadata calendar_metadata;
+
+    isolated function init(int? id=0, CalendarMetadata? calendarMetadata = null) returns error? {
+
+        if (calendarMetadata != null) {
+            self.calendar_metadata = calendarMetadata.cloneReadOnly();
+            return;
+        }
+
+        lock {
+
+            CalendarMetadata calendar_metadata_raw;
+
+            if (id>0) {
+
+                calendar_metadata_raw = check db_client->queryRow(
+                `SELECT *
+                FROM calendar_metadata
+                WHERE id = ${id};`);
+
+            } else {
+                return error("No id provided");
+            }
+
+            self.calendar_metadata = calendar_metadata_raw.cloneReadOnly();
+
+        }
+
+    }
+
+    isolated resource function get id() returns int?|error {
+        lock {
+            return self.calendar_metadata.id;
+        }
+    }
+
+    isolated resource function get organization_id() returns int?|error {
+        lock {
+            return self.calendar_metadata.organization_id;
+        }
+    }
+
+    isolated resource function get monthly_payment_amount() returns decimal?|error {
+        lock {
+            return self.calendar_metadata.monthly_payment_amount;
+        }
+    }
+
+}
diff --git a/api/main.bal b/api/main.bal
index ff6a227..5b812de 100644
--- a/api/main.bal
+++ b/api/main.bal
@@ -5879,30 +5879,30 @@ AND p.organization_id IN (
     isolated resource function get cities(int? district_id) returns CityData[]|error? {
         stream<City, error?> cities_data;
 
-      if(district_id !=null && district_id != 0 && district_id > 0){
+        if (district_id != null && district_id != 0 && district_id > 0) {
 
-        lock {
-            cities_data = db_client->query(
+            lock {
+                cities_data = db_client->query(
                     `SELECT *
                         from city
                      where district_id=${district_id};`);
-        }
+            }
 
-        CityData[] cityDatas = [];
+            CityData[] cityDatas = [];
 
-        check from City city_data_record in cities_data
-            do {
-                CityData|error cityData = new CityData(null, 0,city_data_record);
-                if !(cityData is error) {
-                    cityDatas.push(cityData);
-                }
-            };
+            check from City city_data_record in cities_data
+                do {
+                    CityData|error cityData = new CityData(null, 0, city_data_record);
+                    if !(cityData is error) {
+                        cityDatas.push(cityData);
+                    }
+                };
 
-        check cities_data.close();
-        return cityDatas;
-      }else{
-        return error("Provide valid value for district_id.");
-      }
+            check cities_data.close();
+            return cityDatas;
+        } else {
+            return error("Provide valid value for district_id.");
+        }
     }
 
     isolated resource function get all_organizations() returns OrganizationData[]|error? {
@@ -5928,6 +5928,135 @@ AND p.organization_id IN (
         return organizationDatas;
     }
 
+    remote function add_monthly_leave_dates(MonthlyLeaveDates monthly_leave_dates) returns MonthlyLeaveDatesData|error? {
+
+        string leaveDatesString = "";
+        int totalLeaveDates = 0;
+        decimal dailyAmount = 0.0;
+
+        MonthlyLeaveDates|error? monthlyLeaveDatesRaw = db_client->queryRow(
+            `SELECT *
+            FROM monthly_leave_dates
+            WHERE year = ${monthly_leave_dates.year} and month = ${monthly_leave_dates.month} and
+            organization_id = ${monthly_leave_dates.organization_id};`
+        );
+
+        if ( monthlyLeaveDatesRaw is MonthlyLeaveDates) {
+            return error("A record for this organization id already exists for the same year and month.");
+        }
+
+
+        int[] leaveDates = monthly_leave_dates.leave_dates_list;
+
+        foreach int date in leaveDates {
+            leaveDatesString = leaveDatesString + date.toString() + ",";
+            totalLeaveDates = totalLeaveDates+1;
+        }
+
+        if(leaveDatesString.length() > 0){
+            leaveDatesString = leaveDatesString.substring(0,leaveDatesString.length()-1);
+        }
+
+
+        int? totalSchoolDays = monthly_leave_dates.total_days_in_month - totalLeaveDates;
+
+
+        CalendarMetadata|error? monthlyPaymentAmount = check db_client->queryRow(
+            `SELECT *
+            FROM calendar_metadata
+            WHERE organization_id = ${monthly_leave_dates.organization_id};`
+        );
+
+        if (monthlyPaymentAmount is CalendarMetadata) {
+            dailyAmount = monthlyPaymentAmount.monthly_payment_amount/totalSchoolDays ?: 0.0;
+        }
+
+
+        sql:ExecutionResult res = check db_client->execute(
+            `INSERT INTO monthly_leave_dates (
+                year,
+                month,
+                organization_id,
+                leave_dates,
+                daily_amount
+            ) VALUES (
+                ${monthly_leave_dates.year},
+                ${monthly_leave_dates.month},
+                ${monthly_leave_dates.organization_id},
+                ${leaveDatesString},
+                ${dailyAmount}
+            );`
+        );
+
+        int|string? insert_id = res.lastInsertId;
+        if !(insert_id is int) {
+            return error("Unable to insert Monthly Leave Dates record");
+        }
+
+        return new (insert_id);
+    }
+
+    remote function update_monthly_leave_dates(MonthlyLeaveDates monthly_leave_dates) returns MonthlyLeaveDatesData|error? {
+        
+        int id = monthly_leave_dates.id ?: 0;
+        if (id == 0) {
+            return error("Unable to update Monthly Leave Dates record");
+        }
+
+        string leaveDatesString = "";
+        int totalLeaveDates = 0;
+        decimal dailyAmount = 0.0;
+
+        int[] leaveDates = monthly_leave_dates.leave_dates_list;
+
+        foreach int date in leaveDates {
+            leaveDatesString = leaveDatesString + date.toString() + ",";
+            totalLeaveDates = totalLeaveDates+1;
+        }
+
+        if(leaveDatesString.length() > 0){
+            leaveDatesString = leaveDatesString.substring(0,leaveDatesString.length()-1);
+        }
+
+
+        int? totalSchoolDays = monthly_leave_dates.total_days_in_month - totalLeaveDates;
+
+
+        CalendarMetadata|error? monthlyPaymentAmount = check db_client->queryRow(
+            `SELECT *
+            FROM calendar_metadata
+            WHERE organization_id = ${monthly_leave_dates.organization_id};`
+        );
+
+        if (monthlyPaymentAmount is CalendarMetadata) {
+            dailyAmount = monthlyPaymentAmount.monthly_payment_amount/totalSchoolDays ?: 0.0;
+        }
+
+        sql:ExecutionResult res = check db_client->execute(
+            `UPDATE monthly_leave_dates SET
+                year = ${monthly_leave_dates.year},
+                month = ${monthly_leave_dates.month},
+                organization_id = ${monthly_leave_dates.organization_id},
+                leave_dates = ${leaveDatesString},
+                daily_amount = ${dailyAmount}
+            WHERE id = ${id};`
+        );
+
+        if (res.affectedRowCount == sql:EXECUTION_FAILED) {
+            return error("Unable to update Monthly Leave Dates record");
+        }
+
+        return new (id);
+    }
+
+    isolated resource function get monthly_leave_dates_record_by_id(int? id) returns MonthlyLeaveDatesData|error? {
+        if (id != null) {
+            return new (id);
+        } else {
+            return error("Provide non-null value for id.");
+        }
+    }
+
 }
 
 isolated function calculateWeekdays(time:Utc toDate, time:Utc fromDate) returns int {
diff --git a/api/monthly_leave_dates.bal b/api/monthly_leave_dates.bal
new file mode 100644
index 0000000..f92f72a
--- /dev/null
+++ b/api/monthly_leave_dates.bal
@@ -0,0 +1,100 @@
+import ballerina/io;
+import ballerina/regex;
+
+public isolated service class MonthlyLeaveDatesData {
+
+    private MonthlyLeaveDates monthly_leave_dates;
+
+    isolated function init(int? id = 0, MonthlyLeaveDates? monthlyLeaveDates = null) returns error? {
+
+        if (monthlyLeaveDates != null) {
+            self.monthly_leave_dates = monthlyLeaveDates.cloneReadOnly();
+            return;
+        }
+
+        lock {
+
+            MonthlyLeaveDates monthly_leave_dates_raw;
+
+            if (id > 0) {
+
+                monthly_leave_dates_raw = check db_client->queryRow(
+                `SELECT *
+                FROM monthly_leave_dates
+                WHERE id = ${id};`);
+
+            } else {
+                return error("No id provided");
+            }
+
+            self.monthly_leave_dates = monthly_leave_dates_raw.cloneReadOnly();
+
+        }
+
+    }
+
+    isolated resource function get id() returns int?|error {
+        lock {
+            return self.monthly_leave_dates.id;
+        }
+    }
+
+    isolated resource function get year() returns int?|error {
+        lock {
+            return self.monthly_leave_dates.year;
+        }
+    }
+
+    isolated resource function get month() returns int?|error {
+        lock {
+            return self.monthly_leave_dates.month;
+        }
+    }
+
+    isolated resource function get organization_id() returns int?|error {
+        lock {
+            return self.monthly_leave_dates.organization_id;
+        }
+    }
+
+    isolated resource function get leave_dates_list() returns int[]?|error {
+     string[] strArray;
+
+     lock{
+        string? str = self.monthly_leave_dates.leave_dates;
+
+        // Split the string by commas using string:split
+        strArray = regex:split(str ?: "",",");
+     }
+        // Convert the string array to an integer array
+
+        int[] intArray = from var s in strArray
+            where s.trim() != ""
+            select  check int:fromString(s);
+
+        // Output the integer array
+        io:println(intArray);
+
+        return intArray;
+        
+    }
+
+    isolated resource function get daily_amount() returns decimal?|error {
+        lock {
+            return self.monthly_leave_dates.daily_amount;
+        }
+    }
+
+    isolated resource function get created() returns string?|error {
+        lock {
+            return self.monthly_leave_dates.created;
+        }
+    }
+
+    isolated resource function get updated() returns string?|error {
+        lock {
+            return self.monthly_leave_dates.updated;
+        }
+    }
+
+}
diff --git a/api/types.bal b/api/types.bal
index a942b7c..ead0c67 100644
--- a/api/types.bal
+++ b/api/types.bal
@@ -689,3 +689,24 @@ public type VehicleFuelConsumption record{|
     string? created;
     string? updated;
 |};
+
+public type CalendarMetadata record {|
+    readonly string? record_type = "calendar_metadata";
+    int id?;
+    int? organization_id;
+    decimal? monthly_payment_amount;
+|};
+
+public type MonthlyLeaveDates record {|
+    readonly string? record_type = "monthly_leave_dates";
+    int id?;
+    int? year;
+    int? month;
+    int? total_days_in_month;
+    int? organization_id;
+    int[] leave_dates_list;
+    string? leave_dates;
+    decimal? daily_amount;
+    string? created;
+    string? updated;
+|};