fix(India): Add GST state code for Ladakh

erpnext/patches.txt

@@ -751,3 +751,4 @@ erpnext.patches.v13_0.convert_qi_parameter_to_link_field
 erpnext.patches.v13_0.setup_patient_history_settings_for_standard_doctypes
 erpnext.patches.v13_0.add_naming_series_to_old_projects # 1-02-2021
 erpnext.patches.v13_0.item_reposting_for_incorrect_sl_and_gl
+erpnext.patches.v12_0.add_state_code_for_ladakh

erpnext/patches/v12_0/add_state_code_for_ladakh.py

@@ -0,0 +1,16 @@
+import frappe
+from erpnext.regional.india import states
+
+def execute():
+
+	company = frappe.get_all('Company', filters = {'country': 'India'})
+	if not company:
+		return
+
+	custom_fields = ['Address-gst_state', 'Tax Category-gst_state']
+
+	# Update options in gst_state custom fields
+	for field in custom_fields:
+		gst_state_field = frappe.get_doc('Custom Field', field)
+		gst_state_field.options = '\n'.join(states)
+		gst_state_field.save()

erpnext/regional/india/__init__.py

@@ -20,6 +20,7 @@ states = [
  'Jharkhand',
  'Karnataka',
  'Kerala',
+ 'Ladakh',
  'Lakshadweep Islands',
  'Madhya Pradesh',
  'Maharashtra',
@@ -59,6 +60,7 @@ state_numbers = {
  "Jharkhand": "20",
  "Karnataka": "29",
  "Kerala": "32",
+ "Ladakh": "38",
  "Lakshadweep Islands": "31",
  "Madhya Pradesh": "23",
  "Maharashtra": "27",

erpnext/regional/india/gst_state_code_data.json

@@ -168,5 +168,10 @@
   "state_number": "37",
   "state_code": "AD",
   "state_name": "Andhra Pradesh (New)"
+ },
+ {
+  "state_number": "38",
+  "state_code": "LA",
+  "state_name": "Ladakh"
  }
 ]