diff --git a/apitest-commons/src/main/java/io/mosip/testrig/apirig/utils/AdminTestUtil.java b/apitest-commons/src/main/java/io/mosip/testrig/apirig/utils/AdminTestUtil.java
index 434702e74e..ea8280dd5e 100644
--- a/apitest-commons/src/main/java/io/mosip/testrig/apirig/utils/AdminTestUtil.java
+++ b/apitest-commons/src/main/java/io/mosip/testrig/apirig/utils/AdminTestUtil.java
@@ -95,6 +95,7 @@
 import com.auth0.jwt.exceptions.JWTDecodeException;
 import com.auth0.jwt.interfaces.DecodedJWT;
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.github.jknack.handlebars.Context;
@@ -1382,20 +1383,40 @@ protected Response postWithBodyAndBearerTokenForAutoGeneratedId(String url, Stri
 			return response;
 		}
 	}
-
+	
 	protected Response postWithBodyAndCookieForAutoGeneratedIdForUrlEncoded(String url, String jsonInput,
 			String testCaseName, String idKeyName) throws SecurityXSSException {
 		Response response = null;
 		String inputJson = inputJsonKeyWordHandeler(jsonInput, testCaseName);
 		ObjectMapper mapper = new ObjectMapper();
-		Map<String, String> map = null;
+		Map<String, String> formData = new HashMap<>();
+
 		try {
-			map = mapper.readValue(inputJson, Map.class);
+			@SuppressWarnings("unchecked")
+			Map<String, Object> jsonMap = mapper.readValue(inputJson, Map.class);
+
+			// conversion: simple strings → raw values, complex → JSON strings
+			for (Map.Entry<String, Object> entry : jsonMap.entrySet()) {
+				Object value = entry.getValue();
+				String formValue;
+
+				if (value instanceof String) {
+					// String values should remain raw
+					formValue = (String) value;
+				} else {
+					// Arrays/objects/other types → JSON string
+					formValue = mapper.writeValueAsString(value);
+				}
+
+				formData.put(entry.getKey(), formValue);
+			}
+
 			logger.info(GlobalConstants.POST_REQ_URL + url);
-			logger.info(inputJson);
+
 			GlobalMethods.reportRequest(null, inputJson, url);
-			response = RestClient.postRequestWithFormDataBody(url, map);
-			// check if X-XSS-Protection is enabled or not
+
+			response = RestClient.postRequestWithFormDataBody(url, formData);
+
 			GlobalMethods.checkXSSProtectionHeader(response, url);
 			GlobalMethods.reportResponse(response.getHeaders().asList().toString(), url, response);
 
@@ -1408,7 +1429,6 @@ protected Response postWithBodyAndCookieForAutoGeneratedIdForUrlEncoded(String u
 					keyName = ESIGNETUINCOOKIESRESPONSE;
 				else
 					keyName = ESIGNETVIDCOOKIESRESPONSE;
-
 				CertsUtil.addCertificateToCache(keyName, response.getBody().asString());
 			}
 
@@ -1426,6 +1446,7 @@ protected Response postWithBodyAndCookieForAutoGeneratedIdForUrlEncoded(String u
 		}
 	}
 
+
 	protected Response patchWithBodyAndCookieWithAutoGeneratedId(String url, String jsonInput, String cookieName,
 			String role, String testCaseName, String idKeyName) throws SecurityXSSException {
 		Response response = null;