fix: reversing previous commits and adding condition in regional controller
diff --git a/erpnext/public/js/controllers/buying.js b/erpnext/public/js/controllers/buying.js
index cd5cc92..cb76c87 100644
--- a/erpnext/public/js/controllers/buying.js
+++ b/erpnext/public/js/controllers/buying.js
@@ -135,7 +135,6 @@
 	supplier_address: function() {
 		erpnext.utils.get_address_display(this.frm);
 		erpnext.utils.set_taxes_from_address(this.frm, "supplier_address", "supplier_address", "supplier_address");
-		erpnext.utils.set_place_of_supply(this.frm)
 	},
 
 	buying_price_list: function() {
diff --git a/erpnext/public/js/utils.js b/erpnext/public/js/utils.js
index 1555896..ea2093e 100755
--- a/erpnext/public/js/utils.js
+++ b/erpnext/public/js/utils.js
@@ -116,19 +116,6 @@
 		}
 	},
 
-	set_place_of_supply: function(frm){
-		frappe.call({
-			method: "erpnext.regional.india.utils.get_place_of_supply",
-			args: {
-				"party_details": frm.doc,
-				"doctype": frm.doc.doctype
-			},
-			callback: function(r){
-					frm.set_value("place_of_supply", r.message)
-			}
-		})
-	},
-
 	add_indicator_for_multicompany: function(frm, info) {
 		frm.dashboard.stats_area.removeClass('hidden');
 		frm.dashboard.stats_area_row.addClass('flex');
diff --git a/erpnext/regional/india/taxes.js b/erpnext/regional/india/taxes.js
index 3b6a28f..ecfa9b7 100644
--- a/erpnext/regional/india/taxes.js
+++ b/erpnext/regional/india/taxes.js
@@ -37,6 +37,7 @@
 				callback: function(r) {
 					if(r.message) {
 						frm.set_value('taxes_and_charges', r.message.taxes_and_charges);
+						frm.set_value('place_of_supply', r.message.place_of_supply);
 					} else if (frm.doc.is_internal_supplier || frm.doc.is_internal_customer) {
 						frm.set_value('taxes_and_charges', '');
 						frm.set_value('taxes', []);
diff --git a/erpnext/regional/india/utils.py b/erpnext/regional/india/utils.py
index 7ad1c07..54083dea 100644
--- a/erpnext/regional/india/utils.py
+++ b/erpnext/regional/india/utils.py
@@ -135,12 +135,8 @@
 	'''test function'''
 	return 'overridden'
 
-@frappe.whitelist()
 def get_place_of_supply(party_details, doctype):
 	if not frappe.get_meta('Address').has_field('gst_state'): return
-	if isinstance(party_details, string_types):
-		party_details = json.loads(party_details)
-		party_details = frappe._dict(party_details)
 
 	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order"):
 		address_name = party_details.customer_address or party_details.shipping_address_name
@@ -164,7 +160,7 @@
 	if is_internal_transfer(party_details, doctype):
 		party_details.taxes_and_charges = ''
 		party_details.taxes = ''
-		return
+		return party_details
 
 	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order"):
 		master_doctype = "Sales Taxes and Charges Template"
@@ -172,26 +168,26 @@
 		get_tax_template_for_sez(party_details, master_doctype, company, 'Customer')
 		get_tax_template_based_on_category(master_doctype, company, party_details)
 
-		if party_details.get('taxes_and_charges') and return_taxes:
+		if party_details.get('taxes_and_charges'):
 			return party_details
 
 		if not party_details.company_gstin:
-			return
+			return party_details
 
 	elif doctype in ("Purchase Invoice", "Purchase Order", "Purchase Receipt"):
 		master_doctype = "Purchase Taxes and Charges Template"
 		get_tax_template_for_sez(party_details, master_doctype, company, 'Supplier')
 		get_tax_template_based_on_category(master_doctype, company, party_details)
 
-		if party_details.get('taxes_and_charges') and return_taxes:
+		if party_details.get('taxes_and_charges'):
 			return party_details
 
 		if not party_details.supplier_gstin:
-			return
+			return party_details
 
-	if not party_details.place_of_supply: return
+	if not party_details.place_of_supply: return party_details
 
-	if not party_details.company_gstin: return
+	if not party_details.company_gstin: return party_details
 
 	if ((doctype in ("Sales Invoice", "Delivery Note", "Sales Order") and party_details.company_gstin
 		and party_details.company_gstin[:2] != party_details.place_of_supply[:2]) or (doctype in ("Purchase Invoice",
@@ -201,12 +197,11 @@
 		default_tax = get_tax_template(master_doctype, company, 0, party_details.company_gstin[:2])
 
 	if not default_tax:
-		return
+		return party_details
 	party_details["taxes_and_charges"] = default_tax
 	party_details.taxes = get_taxes_and_charges(master_doctype, default_tax)
 
-	if return_taxes:
-		return party_details
+	return party_details
 
 def is_internal_transfer(party_details, doctype):
 	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order"):
diff --git a/erpnext/selling/sales_common.js b/erpnext/selling/sales_common.js
index 77bdf29..002cfe4 100644
--- a/erpnext/selling/sales_common.js
+++ b/erpnext/selling/sales_common.js
@@ -117,7 +117,6 @@
 	customer_address: function() {
 		erpnext.utils.get_address_display(this.frm, "customer_address");
 		erpnext.utils.set_taxes_from_address(this.frm, "customer_address", "customer_address", "shipping_address_name");
-		erpnext.utils.set_place_of_supply(this.frm)
 	},
 
 	shipping_address_name: function() {