diff --git a/lib/codegen/dart/dio.dart b/lib/codegen/dart/dio.dart
index c4a7ed8e6..c2971a214 100644
--- a/lib/codegen/dart/dio.dart
+++ b/lib/codegen/dart/dio.dart
@@ -33,7 +33,7 @@ class DartDioCodeGen {
   String generatedDartCode({
     required String url,
     required HTTPVerb method,
-    required Map<String, String> queryParams,
+    required Map<String, dynamic> queryParams,
     required Map<String, String> headers,
     required String? body,
     required ContentType contentType,
diff --git a/lib/codegen/dart/http.dart b/lib/codegen/dart/http.dart
index 42c44ecb3..443a1e0e1 100644
--- a/lib/codegen/dart/http.dart
+++ b/lib/codegen/dart/http.dart
@@ -35,7 +35,7 @@ class DartHttpCodeGen {
   String generatedDartCode({
     required String url,
     required HTTPVerb method,
-    required Map<String, String> queryParams,
+    required Map<String, dynamic> queryParams,
     required Map<String, String> headers,
     required ContentType contentType,
     required String? body,
diff --git a/lib/models/request_model.dart b/lib/models/request_model.dart
index a8d3569a4..1b91913b3 100644
--- a/lib/models/request_model.dart
+++ b/lib/models/request_model.dart
@@ -6,6 +6,8 @@ import '../utils/utils.dart'
         rowsToFormDataMapList,
         mapToRows,
         rowsToMap,
+        requestMapToRows,
+        rowsToRequestMap,
         getEnabledRows;
 import '../consts.dart';
 import 'models.dart';
@@ -57,10 +59,10 @@ class RequestModel {
 
   Map<String, String> get enabledHeadersMap =>
       rowsToMap(enabledRequestHeaders) ?? {};
-  Map<String, String> get enabledParamsMap =>
-      rowsToMap(enabledRequestParams) ?? {};
+  Map<String, dynamic> get enabledParamsMap =>
+      rowsToRequestMap(enabledRequestParams) ?? {};
   Map<String, String> get headersMap => rowsToMap(requestHeaders) ?? {};
-  Map<String, String> get paramsMap => rowsToMap(requestParams) ?? {};
+  Map<String, dynamic> get paramsMap => rowsToRequestMap(requestParams) ?? {};
 
   List<Map<String, dynamic>> get formDataMapList =>
       rowsToFormDataMapList(requestFormDataList) ?? [];
@@ -184,7 +186,7 @@ class RequestModel {
           ? mapToRows(Map<String, String>.from(requestHeaders))
           : null,
       requestParams: requestParams != null
-          ? mapToRows(Map<String, String>.from(requestParams))
+          ? requestMapToRows(Map<String, dynamic>.from(requestParams))
           : null,
       isHeaderEnabledList: isHeaderEnabledList,
       isParamEnabledList: isParamEnabledList,
@@ -207,7 +209,7 @@ class RequestModel {
       "name": name,
       "description": description,
       "requestHeaders": rowsToMap(requestHeaders),
-      "requestParams": rowsToMap(requestParams),
+      "requestParams": rowsToRequestMap(requestParams),
       "isHeaderEnabledList": isHeaderEnabledList,
       "isParamEnabledList": isParamEnabledList,
       "requestBodyContentType": requestBodyContentType.name,
diff --git a/lib/utils/convert_utils.dart b/lib/utils/convert_utils.dart
index bc704af99..92879a5a7 100644
--- a/lib/utils/convert_utils.dart
+++ b/lib/utils/convert_utils.dart
@@ -61,6 +61,37 @@ String padMultilineString(String text, int padding,
   return lines.join("\n");
 }
 
+Map<String, dynamic>? rowsToRequestMap(List<NameValueModel>? kvRows) {
+  if (kvRows == null) {
+    return null;
+  }
+  Map<String, List<String>> finalMap = {};
+  for (var row in kvRows) {
+    if (row.name.trim() != "") {
+      String key = row.name;
+      if (!finalMap.containsKey(key)) {
+        finalMap[key] = [];
+      }
+      finalMap[key]!.add(row.value.toString());
+    }
+  }
+  return finalMap.map((key, valueList) => MapEntry(key, valueList.length == 1 ? valueList[0] : valueList));
+}
+
+List<NameValueModel>? requestMapToRows(Map<String, dynamic>? requestMap) {
+  if (requestMap == null) {
+    return null;
+  }
+  List<NameValueModel> finalRows = [];
+  for (var key in requestMap.keys) {
+    List<String> elementList = requestMap[key] is List<String> ? requestMap[key] : [requestMap[key]];
+    for (var element in elementList) {
+      finalRows.add(NameValueModel(name: key, value: element));
+    }
+  }
+  return finalRows;
+}
+
 Map<String, String>? rowsToMap(List<NameValueModel>? kvRows,
     {bool isHeader = false}) {
   if (kvRows == null) {
diff --git a/lib/utils/har_utils.dart b/lib/utils/har_utils.dart
index b5e1de72f..748686d9c 100644
--- a/lib/utils/har_utils.dart
+++ b/lib/utils/har_utils.dart
@@ -99,14 +99,16 @@ Map<String, dynamic> requestModelToHARJsonRequest(
     json["queryString"] = [];
     json["headers"] = [];
 
-    var params = uri.queryParameters;
+    Map<String, List<String>> params = uri.queryParametersAll;
     if (params.isNotEmpty) {
       for (final k in params.keys) {
-        var m = {"name": k, "value": params[k]};
-        if (exportMode) {
-          m["comment"] = "";
+        for (final val in params[k]!) {
+          var m = {"name": k, "value": val};
+          if (exportMode) {
+            m["comment"] = "";
+          }
+          json["queryString"].add(m);
         }
-        json["queryString"].add(m);
       }
     }
 
diff --git a/lib/utils/http_utils.dart b/lib/utils/http_utils.dart
index 63aa6181a..245308a6b 100644
--- a/lib/utils/http_utils.dart
+++ b/lib/utils/http_utils.dart
@@ -4,7 +4,7 @@ import 'package:collection/collection.dart' show mergeMaps;
 import 'package:http_parser/http_parser.dart';
 import 'package:xml/xml.dart';
 import '../models/models.dart';
-import 'convert_utils.dart' show rowsToMap;
+import 'convert_utils.dart' show rowsToRequestMap;
 import '../consts.dart';
 
 String getRequestTitleFromUrl(String? url) {
@@ -88,12 +88,16 @@ String stripUrlParams(String url) {
     uri = uri.removeFragment();
   }
 
-  Map<String, String>? queryParams = rowsToMap(requestParams);
-  if (queryParams != null) {
-    if (uri.hasQuery) {
-      Map<String, String> urlQueryParams = uri.queryParameters;
-      queryParams = mergeMaps(urlQueryParams, queryParams);
-    }
+  Map<String, List<String>> queryParams = uri.queryParametersAll;
+
+  Map<String, dynamic>? requestQueryParams = rowsToRequestMap(requestParams);
+  if (requestQueryParams != null) {
+    Map<String, List<String>> queryParamsList = requestQueryParams.map((key, value) {
+      return MapEntry(key, List<String>.from(value is String ? [value] : value));
+    });
+    queryParams = mergeMaps(queryParams, queryParamsList, value: (v1, v2) => v1 + v2);
+  }
+  if (queryParams.isNotEmpty) {
     uri = uri.replace(queryParameters: queryParams);
   }
   return (uri, null);
diff --git a/test/codegen/curl_codegen_test.dart b/test/codegen/curl_codegen_test.dart
index 4481e8194..13f145e22 100644
--- a/test/codegen/curl_codegen_test.dart
+++ b/test/codegen/curl_codegen_test.dart
@@ -19,7 +19,7 @@ void main() {
 
     test('GET 3', () {
       const expectedCode =
-          r"""curl --url 'https://api.apidash.dev/country/data?code=IND'""";
+          r"""curl --url 'https://api.apidash.dev/country/data?code=US&code=UK&code=IN&code=JP'""";
       expect(curlCodeGen.getCode(requestModelGet3, "https"), expectedCode);
     });
 
diff --git a/test/models/request_model_test.dart b/test/models/request_model_test.dart
index 1bb40ec72..e8d5475ed 100644
--- a/test/models/request_model_test.dart
+++ b/test/models/request_model_test.dart
@@ -59,6 +59,9 @@ void main() {
         NameValueModel(
             name: 'content-type', value: 'application/json; charset=utf-8')
       ],
+      requestParams: const [
+        NameValueModel(name: 'TEXT', value: 'abc')
+      ],
       requestBodyContentType: ContentType.json,
       requestBody: '''{
 "text":"WORLD"
@@ -76,6 +79,9 @@ void main() {
         NameValueModel(
             name: 'content-type', value: 'application/json; charset=utf-8')
       ],
+      requestParams: [
+        NameValueModel(name: 'TEXT', value: 'abc')
+      ],
       requestBodyContentType: ContentType.json,
       requestBody: '''{
 "text":"WORLD"
@@ -91,6 +97,9 @@ void main() {
         NameValueModel(
             name: 'content-type', value: 'application/json; charset=utf-8')
       ],
+      requestParams: [
+        NameValueModel(name: 'TEXT', value: 'abc')
+      ],
       requestBodyContentType: ContentType.json,
       requestBody: '''{
 "text":"WORLD"
@@ -107,7 +116,9 @@ void main() {
       'content-type': 'application/json; charset=utf-8'
     },
     'isHeaderEnabledList': null,
-    'requestParams': null,
+    'requestParams': {
+      'TEXT': 'abc',
+    },
     'isParamEnabledList': null,
     "requestBodyContentType": 'json',
     "requestBody": '''{
@@ -144,7 +155,7 @@ void main() {
     "Request Tab Index: 0",
     "Request Headers: [NameValueModel(name: content-length, value: 18), NameValueModel(name: content-type, value: application/json; charset=utf-8)]",
     "Enabled Headers: null",
-    "Request Params: null",
+    "Request Params: [NameValueModel(name: TEXT, value: abc)]",
     "Enabled Params: null",
     "Request Body Content Type: ContentType.json",
     'Request Body: {\n"text":"WORLD"\n}',
@@ -163,17 +174,23 @@ void main() {
       NameValueModel(
           name: 'content-type', value: 'application/json; charset=utf-8')
     ]);
-    expect(requestModel.enabledRequestParams, null);
+    expect(requestModel.enabledRequestParams, const [
+      NameValueModel(name: 'TEXT', value: 'abc')
+    ]);
     expect(requestModel.enabledHeadersMap, {
       'content-length': '18',
       'content-type': 'application/json; charset=utf-8'
     });
-    expect(requestModel.enabledParamsMap, {});
+    expect(requestModel.enabledParamsMap, {
+      'TEXT': 'abc'
+    });
     expect(requestModel.headersMap, {
       'content-length': '18',
       'content-type': 'application/json; charset=utf-8'
     });
-    expect(requestModel.paramsMap, {});
+    expect(requestModel.paramsMap, {
+      'TEXT': 'abc'
+    });
     expect(requestModel.formDataMapList, []);
     expect(requestModel.isFormDataRequest, false);
     expect(requestModel.hasContentTypeHeader, true);
diff --git a/test/request_models.dart b/test/request_models.dart
index 0c3d85e2a..fb44ef59b 100644
--- a/test/request_models.dart
+++ b/test/request_models.dart
@@ -19,13 +19,14 @@ const requestModelGet2 = RequestModel(
   ],
 );
 
-/// GET request model with override query params
+/// GET request model with duplicate query params
 const requestModelGet3 = RequestModel(
   id: 'get3',
-  url: 'https://api.apidash.dev/country/data?code=US',
+  url: 'https://api.apidash.dev/country/data?code=US&code=UK',
   method: HTTPVerb.get,
   requestParams: [
-    NameValueModel(name: 'code', value: 'IND'),
+    NameValueModel(name: 'code', value: 'IN'),
+    NameValueModel(name: 'code', value: 'JP'),
   ],
 );
 
diff --git a/test/utils/convert_utils_test.dart b/test/utils/convert_utils_test.dart
index e996c3190..fc53208cb 100644
--- a/test/utils/convert_utils_test.dart
+++ b/test/utils/convert_utils_test.dart
@@ -70,6 +70,49 @@ void main() {
       expect(formatHeaderCase(headerText2), headerText2Expected);
     });
   });
+
+  group("Testing rowsToRequestMap", () {
+    test('Testing for null', () {
+      expect(rowsToRequestMap(null), null);
+    });
+    test('Testing for string KVRow values', () {
+      const kvRow1 = NameValueModel(name: "code", value: "IN");
+      expect(rowsToRequestMap([kvRow1]), {"code": "IN"});
+    });
+    test('Testing when header is false and key is in upper case', () {
+      const kvRow3 = <NameValueModel>[
+        NameValueModel(name: "TEXT", value: "ABC"),
+        NameValueModel(name: "version", value: 0.1),
+        NameValueModel(name: "month", value: 4),
+      ];
+      expect(
+          rowsToRequestMap(kvRow3), {"TEXT": "ABC", "version": "0.1", "month": "4"});
+    });
+    test('Testing for duplicate search params', () {
+      const kvRow4 = <NameValueModel>[
+        NameValueModel(name: "TEXT", value: "ABC"),
+        NameValueModel(name: "TEXT", value: "DEF"),
+      ];
+      expect(rowsToRequestMap(kvRow4), {"TEXT": ["ABC", "DEF"]});
+    });
+  });
+
+  group("Testing requestMapToRows", () {
+    test('Testing for null', () {
+      expect(requestMapToRows(null), null);
+    });
+    test('Testing with a map value', () {
+      Map<String, dynamic> value1 = {"text": ["abc", "def"], "lang": "eng", "code": "1"};
+      const result1Expected = <NameValueModel>[
+        NameValueModel(name: "text", value: "abc"),
+        NameValueModel(name: "text", value: "def"),
+        NameValueModel(name: "lang", value: "eng"),
+        NameValueModel(name: "code", value: "1")
+      ];
+      expect(requestMapToRows(value1), result1Expected);
+    });
+  });
+
   group("Testing rowsToMap", () {
     test('Testing for null', () {
       expect(rowsToMap(null), null);
diff --git a/test/utils/har_utils_test.dart b/test/utils/har_utils_test.dart
index 174ab1803..9664a4629 100644
--- a/test/utils/har_utils_test.dart
+++ b/test/utils/har_utils_test.dart
@@ -318,6 +318,21 @@ void main() {
             ),
             expectedResult);
       });
+      test('Test requestModelToHARJsonRequest with duplicate query parameters', () {
+        Map<String, dynamic> expectedResult = {
+          'method': 'GET',
+          'url': 'https://api.apidash.dev/country/data?code=US&code=UK&code=IN&code=JP',
+          'httpVersion': 'HTTP/1.1',
+          'queryString': [
+            {'name': 'code', 'value': 'US'},
+            {'name': 'code', 'value': 'UK'},
+            {'name': 'code', 'value': 'IN'},
+            {'name': 'code', 'value': 'JP'},
+          ],
+          'headers': []
+        };
+        expect(requestModelToHARJsonRequest(requestModelGet3), expectedResult);
+      });
     },
   );
 }
diff --git a/test/utils/http_utils_test.dart b/test/utils/http_utils_test.dart
index 2b660fcb3..016cf3bda 100644
--- a/test/utils/http_utils_test.dart
+++ b/test/utils/http_utils_test.dart
@@ -223,7 +223,7 @@ void main() {
           scheme: 'https',
           host: 'api.apidash.dev',
           path: 'country/data',
-          queryParameters: {'code': 'US'});
+          queryParameters: {'code': ['IND', 'US']});
       expect(getValidRequestUri(url6, [kvRow6]), (uri6Expected, null));
     });
     test('Testing getValidRequestUri when kvrow is null', () {
@@ -235,6 +235,15 @@ void main() {
           queryParameters: {'code': 'US'});
       expect(getValidRequestUri(url7, null), (uri7Expected, null));
     });
+    test('Testing getValidRequestUri when passing duplicate search parameters in url as comma separated', () {
+      String url9 = "api.apidash.dev/country/data?code=US,IND";
+      Uri uri9Expected = Uri(
+          scheme: 'https',
+          host: 'api.apidash.dev',
+          path: 'country/data',
+          queryParameters: {'code': 'US,IND'});
+      expect(getValidRequestUri(url9, null), (uri9Expected, null));
+    });
   });
 
   group("Testing getResponseBodyViewOptions", () {