diff --git a/src/main/java/com/iemr/admin/service/nikshayidgenerate/NikshayAreaMapper.java b/src/main/java/com/iemr/admin/service/nikshayidgenerate/NikshayAreaMapper.java
new file mode 100644
index 0000000..141ae2a
--- /dev/null
+++ b/src/main/java/com/iemr/admin/service/nikshayidgenerate/NikshayAreaMapper.java
@@ -0,0 +1,86 @@
+/*
+* AMRIT – Accessible Medical Records via Integrated Technologies
+* Integrated EHR (Electronic Health Records) Solution
+*
+* Copyright (C) "Piramal Swasthya Management and Research Institute"
+*
+* This file is part of AMRIT.
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see https://www.gnu.org/licenses/.
+*/
+package com.iemr.admin.service.nikshayidgenerate;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * AMRIT household area (i_householddetails.residentialArea) to a value Ni-kshay's enrolment
+ * form accepts. A blank value, the text "null" (how the app saves a missing area), or any
+ * text that is not one of those choices and has no mapping, is sent as Unknown so
+ * enrolment is not rejected with "Invalid Area".
+ */
+public final class NikshayAreaMapper {
+
+	static final String UNKNOWN = "Unknown";
+
+	// Exact strings from beta.nikshay.in enrolment (the area options of the add case form).
+	private static final String[] NIKSHAY = {
+			"Tribal-Non Particularly Vulnerable Tribal Groups",
+			"Tribal-Particularly Vulnerable Tribal Groups",
+			"Rural",
+			"Urban",
+			"Urban Slum",
+			UNKNOWN };
+
+	private static final Map<String, String> NIKSHAY_BY_KEY = new LinkedHashMap<>();
+	private static final Map<String, String> AMRIT_TO_NIKSHAY = new LinkedHashMap<>();
+
+	static {
+		for (String value : NIKSHAY) {
+			NIKSHAY_BY_KEY.put(key(value), value);
+		}
+		// AMRIT's area choices; Rural, Urban, Urban Slum and Unknown are the same as Ni-kshay's.
+		put("Tribal NPVTG", "Tribal-Non Particularly Vulnerable Tribal Groups");
+		put("Tribal-PVTG", "Tribal-Particularly Vulnerable Tribal Groups");
+		put("null", UNKNOWN);
+	}
+
+	private NikshayAreaMapper() {
+	}
+
+	/** A Ni-kshay area. Never null, and never a value outside Ni-kshay's list. */
+	public static String toNikshay(String amritArea) {
+		String normalized = key(amritArea);
+		if (normalized.isEmpty()) {
+			return UNKNOWN;
+		}
+		String alreadyNikshay = NIKSHAY_BY_KEY.get(normalized);
+		if (alreadyNikshay != null) {
+			return alreadyNikshay;
+		}
+		String mapped = AMRIT_TO_NIKSHAY.get(normalized);
+		return mapped == null ? UNKNOWN : mapped;
+	}
+
+	private static void put(String amrit, String nikshay) {
+		AMRIT_TO_NIKSHAY.put(key(amrit), nikshay);
+	}
+
+	private static String key(String value) {
+		if (value == null) {
+			return "";
+		}
+		return value.trim().toLowerCase().replaceAll("[^a-z0-9]+", " ").replaceAll("\\s+", " ").trim();
+	}
+}
diff --git a/src/main/java/com/iemr/admin/service/nikshayidgenerate/NikshayEnrollPayloadBuilder.java b/src/main/java/com/iemr/admin/service/nikshayidgenerate/NikshayEnrollPayloadBuilder.java
index d5ad1f8..e8ca3a3 100644
--- a/src/main/java/com/iemr/admin/service/nikshayidgenerate/NikshayEnrollPayloadBuilder.java
+++ b/src/main/java/com/iemr/admin/service/nikshayidgenerate/NikshayEnrollPayloadBuilder.java
@@ -79,7 +79,7 @@ public ObjectNode build(NikshayIdGenerateBeneficiaryDTO beneficiary, String pare
 		residenceHierarchyAll.add(beneficiary.getNikshayTuId());
 		residenceHierarchyAll.add(beneficiary.getNikshayPortalVillageId());
 		payload.put("Pincode", beneficiary.getPincode());
-		payload.put("Area", beneficiary.getArea());
+		payload.put("Area", NikshayAreaMapper.toNikshay(beneficiary.getArea()));
 		payload.put("MaritalStatus", beneficiary.getMaritalStatus());
 		payload.put("Occupation", NikshayOccupationMapper.toNikshay(beneficiary.getOccupation()));
 		payload.put("SocioeconomicStatus", beneficiary.getSocioeconomicStatus());