prevent deletion of sales invoices if country is nepal
diff --git a/erpnext/hooks.py b/erpnext/hooks.py
index 3935f22..7ed9b88 100644
--- a/erpnext/hooks.py
+++ b/erpnext/hooks.py
@@ -201,7 +201,7 @@
 	"Sales Invoice": {
 		'validate': 'erpnext.regional.india.utils.set_place_of_supply',
 		"on_submit": "erpnext.regional.france.utils.create_transaction_log",
-		"on_trash": "erpnext.regional.france.utils.check_deletion_permission"
+		"on_trash": ["erpnext.regional.france.utils.check_deletion_permission", "erpnext.regional.nepal.utils.check_deletion_permission"]
 	},
 	"Payment Entry": {
 		"on_submit": ["erpnext.regional.france.utils.create_transaction_log", "erpnext.accounts.doctype.payment_request.payment_request.make_status_as_paid"],
@@ -277,4 +277,4 @@
 	'Saudi Arabia': {
 		'erpnext.controllers.taxes_and_totals.update_itemised_tax_data': 'erpnext.regional.united_arab_emirates.utils.update_itemised_tax_data'
 	}
-}
+}
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