diff --git a/erpnext/regional/india/e_invoice/einvoice.js b/erpnext/regional/india/e_invoice/einvoice.js
index 58f8e11..763e657 100644
--- a/erpnext/regional/india/e_invoice/einvoice.js
+++ b/erpnext/regional/india/e_invoice/einvoice.js
@@ -149,27 +149,58 @@
 			}
 
 			if (irn && ewaybill && !irn_cancelled && !eway_bill_cancelled) {
+				const fields = [
+					{
+						"label": "Reason",
+						"fieldname": "reason",
+						"fieldtype": "Select",
+						"reqd": 1,
+						"default": "1-Duplicate",
+						"options": ["1-Duplicate", "2-Data Entry Error", "3-Order Cancelled", "4-Other"]
+					},
+					{
+						"label": "Remark",
+						"fieldname": "remark",
+						"fieldtype": "Data",
+						"reqd": 1
+					}
+				];
 				const action = () => {
-					let message = __('Cancellation of e-way bill is currently not supported.') + ' ';
-					message += '<br><br>';
-					message += __('You must first use the portal to cancel the e-way bill and then update the cancelled status in the ERPNext system.');
-
-					const dialog = frappe.msgprint({
-						title: __('Update E-Way Bill Cancelled Status?'),
-						message: message,
-						indicator: 'orange',
-						primary_action: {
-							action: function() {
-								frappe.call({
-									method: 'erpnext.regional.india.e_invoice.utils.cancel_eway_bill',
-									args: { doctype, docname: name },
-									freeze: true,
-									callback: () => frm.reload_doc() || dialog.hide()
-								});
-							}
+					const d = new frappe.ui.Dialog({
+						title: __('Cancel E-Way Bill'),
+						fields: fields,
+						primary_action: function() {
+							const data = d.get_values();
+							frappe.call({
+								method: 'erpnext.regional.india.e_invoice.utils.cancel_eway_bill',
+								args: {
+									doctype,
+									docname: name,
+									eway_bill: ewaybill,
+									reason: data.reason.split('-')[0],
+									remark: data.remark
+								},
+								freeze: true,
+								callback: () => {
+									frappe.show_alert({
+										message: __('E-Way Bill Cancelled successfully'),
+										indicator: 'green'
+									}, 7);
+									frm.reload_doc();
+									d.hide();
+								},
+								error: () => {
+									frappe.show_alert({
+										message: __('E-Way Bill was not Cancelled'),
+										indicator: 'red'
+									}, 7);
+									d.hide();
+								}
+							});
 						},
-						primary_action_label: __('Yes')
+						primary_action_label: __('Submit')
 					});
+					d.show();
 				};
 				add_custom_button(__("Cancel E-Way Bill"), action);
 			}
diff --git a/erpnext/regional/india/e_invoice/utils.py b/erpnext/regional/india/e_invoice/utils.py
index 4e6c9a5..53d3211 100644
--- a/erpnext/regional/india/e_invoice/utils.py
+++ b/erpnext/regional/india/e_invoice/utils.py
@@ -792,7 +792,7 @@
 		self.irn_details_url = self.base_url + "/enriched/ei/api/invoice/irn"
 		self.generate_irn_url = self.base_url + "/enriched/ei/api/invoice"
 		self.gstin_details_url = self.base_url + "/enriched/ei/api/master/gstin"
-		self.cancel_ewaybill_url = self.base_url + "/enriched/ewb/ewayapi?action=CANEWB"
+		self.cancel_ewaybill_url = self.base_url + "/enriched/ei/api/ewayapi"
 		self.generate_ewaybill_url = self.base_url + "/enriched/ei/api/ewaybill"
 
 	def set_invoice(self):
@@ -1148,7 +1148,6 @@
 		headers = self.get_headers()
 		data = json.dumps({"ewbNo": eway_bill, "cancelRsnCode": reason, "cancelRmrk": remark}, indent=4)
 		headers["username"] = headers["user_name"]
-		del headers["user_name"]
 		try:
 			res = self.make_request("post", self.cancel_ewaybill_url, headers, data)
 			if res.get("success"):
@@ -1313,13 +1312,9 @@
 
 
 @frappe.whitelist()
-def cancel_eway_bill(doctype, docname):
-	# TODO: uncomment when eway_bill api from Adequare is enabled
-	# gsp_connector = GSPConnector(doctype, docname)
-	# gsp_connector.cancel_eway_bill(eway_bill, reason, remark)
-
-	frappe.db.set_value(doctype, docname, "ewaybill", "")
-	frappe.db.set_value(doctype, docname, "eway_bill_cancelled", 1)
+def cancel_eway_bill(doctype, docname, eway_bill, reason, remark):
+	gsp_connector = GSPConnector(doctype, docname)
+	gsp_connector.cancel_eway_bill(eway_bill, reason, remark)
 
 
 @frappe.whitelist()