diff --git a/erpnext/controllers/stock_controller.py b/erpnext/controllers/stock_controller.py
index 78a6e52..4697205 100644
--- a/erpnext/controllers/stock_controller.py
+++ b/erpnext/controllers/stock_controller.py
@@ -591,7 +591,7 @@
 
 	data = frappe.db.sql("""
 		select item_code, warehouse, count(name) as total_row
-		from `tabStock Ledger Entry`
+		from `tabStock Ledger Entry` force index (item_warehouse)
 		where
 			({})
 			and timestamp(posting_date, posting_time)
diff --git a/erpnext/stock/doctype/bin/bin.py b/erpnext/stock/doctype/bin/bin.py
index 5fbc2d8..4be0415 100644
--- a/erpnext/stock/doctype/bin/bin.py
+++ b/erpnext/stock/doctype/bin/bin.py
@@ -14,51 +14,6 @@
 			self.stock_uom = frappe.get_cached_value('Item', self.item_code, 'stock_uom')
 		self.set_projected_qty()
 
-	def update_stock(self, args, allow_negative_stock=False, via_landed_cost_voucher=False):
-		'''Called from erpnext.stock.utils.update_bin'''
-		self.update_qty(args)
-
-		if args.get("actual_qty") or args.get("voucher_type") == "Stock Reconciliation":
-			from erpnext.stock.stock_ledger import update_entries_after, update_qty_in_future_sle
-
-			if not args.get("posting_date"):
-				args["posting_date"] = nowdate()
-
-			if args.get("is_cancelled") and via_landed_cost_voucher:
-				return
-
-			# Reposts only current voucher SL Entries
-			# Updates valuation rate, stock value, stock queue for current transaction
-			update_entries_after({
-				"item_code": self.item_code,
-				"warehouse": self.warehouse,
-				"posting_date": args.get("posting_date"),
-				"posting_time": args.get("posting_time"),
-				"voucher_type": args.get("voucher_type"),
-				"voucher_no": args.get("voucher_no"),
-				"sle_id": args.name,
-				"creation": args.creation
-			}, allow_negative_stock=allow_negative_stock, via_landed_cost_voucher=via_landed_cost_voucher)
-
-			# update qty in future ale and Validate negative qty
-			update_qty_in_future_sle(args, allow_negative_stock)
-
-
-	def update_qty(self, args):
-		# update the stock values (for current quantities)
-		if args.get("voucher_type")=="Stock Reconciliation":
-			self.actual_qty = args.get("qty_after_transaction")
-		else:
-			self.actual_qty = flt(self.actual_qty) + flt(args.get("actual_qty"))
-
-		self.ordered_qty = flt(self.ordered_qty) + flt(args.get("ordered_qty"))
-		self.reserved_qty = flt(self.reserved_qty) + flt(args.get("reserved_qty"))
-		self.indented_qty = flt(self.indented_qty) + flt(args.get("indented_qty"))
-		self.planned_qty = flt(self.planned_qty) + flt(args.get("planned_qty"))
-
-		self.set_projected_qty()
-		self.db_update()
-
 	def set_projected_qty(self):
 		self.projected_qty = (flt(self.actual_qty) + flt(self.ordered_qty)
 			+ flt(self.indented_qty) + flt(self.planned_qty) - flt(self.reserved_qty)
@@ -143,3 +98,67 @@
 
 def on_doctype_update():
 	frappe.db.add_index("Bin", ["item_code", "warehouse"])
+
+
+def update_stock(bin_name, args, allow_negative_stock=False, via_landed_cost_voucher=False):
+	'''Called from erpnext.stock.utils.update_bin'''
+	update_qty(bin_name, args)
+
+	if args.get("actual_qty") or args.get("voucher_type") == "Stock Reconciliation":
+		from erpnext.stock.stock_ledger import update_entries_after, update_qty_in_future_sle
+
+		if not args.get("posting_date"):
+			args["posting_date"] = nowdate()
+
+		if args.get("is_cancelled") and via_landed_cost_voucher:
+			return
+
+		# Reposts only current voucher SL Entries
+		# Updates valuation rate, stock value, stock queue for current transaction
+		update_entries_after({
+			"item_code": args.get('item_code'),
+			"warehouse": args.get('warehouse'),
+			"posting_date": args.get("posting_date"),
+			"posting_time": args.get("posting_time"),
+			"voucher_type": args.get("voucher_type"),
+			"voucher_no": args.get("voucher_no"),
+			"sle_id": args.get('name'),
+			"creation": args.get('creation')
+		}, allow_negative_stock=allow_negative_stock, via_landed_cost_voucher=via_landed_cost_voucher)
+
+		# update qty in future sle and Validate negative qty
+		update_qty_in_future_sle(args, allow_negative_stock)
+
+def get_bin_details(bin_name):
+	return frappe.db.get_value('Bin', bin_name, ['actual_qty', 'ordered_qty',
+	'reserved_qty', 'indented_qty', 'planned_qty', 'reserved_qty_for_production',
+	'reserved_qty_for_sub_contract'], as_dict=1)
+
+def update_qty(bin_name, args):
+	bin_details = get_bin_details(bin_name)
+
+	# update the stock values (for current quantities)
+	if args.get("voucher_type")=="Stock Reconciliation":
+		actual_qty = args.get('qty_after_transaction')
+	else:
+		actual_qty = bin_details.actual_qty + flt(args.get("actual_qty"))
+
+	ordered_qty = flt(bin_details.ordered_qty) + flt(args.get("ordered_qty"))
+	reserved_qty = flt(bin_details.reserved_qty) + flt(args.get("reserved_qty"))
+	indented_qty = flt(bin_details.indented_qty) + flt(args.get("indented_qty"))
+	planned_qty = flt(bin_details.planned_qty) + flt(args.get("planned_qty"))
+
+
+	# compute projected qty
+	projected_qty = (flt(actual_qty) + flt(ordered_qty)
+		+ flt(indented_qty) + flt(planned_qty) - flt(reserved_qty)
+		- flt(bin_details.reserved_qty_for_production) - flt(bin_details.reserved_qty_for_sub_contract))
+
+	frappe.db.set_value('Bin', bin_name, {
+		'actual_qty': actual_qty,
+		'ordered_qty': ordered_qty,
+		'reserved_qty': reserved_qty,
+		'indented_qty': indented_qty,
+		'planned_qty': planned_qty,
+		'projected_qty': projected_qty
+	})
\ No newline at end of file
diff --git a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.json b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.json
index 40ae340..2651407 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.json
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.json
@@ -317,7 +317,7 @@
  "in_create": 1,
  "index_web_pages_for_search": 1,
  "links": [],
- "modified": "2021-10-08 12:42:51.857631",
+ "modified": "2021-10-08 13:42:51.857631",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Stock Ledger Entry",
diff --git a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
index 382fdfa..2cf71ac 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
@@ -181,3 +181,4 @@
 
 	frappe.db.add_index("Stock Ledger Entry", ["voucher_no", "voucher_type"])
 	frappe.db.add_index("Stock Ledger Entry", ["batch_no", "item_code", "warehouse"])
+	frappe.db.add_index("Stock Ledger Entry", ["warehouse", "item_code"], "item_warehouse")
diff --git a/erpnext/stock/stock_ledger.py b/erpnext/stock/stock_ledger.py
index 1b5b792..e9d5b6a 100644
--- a/erpnext/stock/stock_ledger.py
+++ b/erpnext/stock/stock_ledger.py
@@ -13,8 +13,8 @@
 
 import erpnext
 from erpnext.stock.utils import (
-	get_bin,
 	get_incoming_outgoing_rate_for_cancel,
+	get_or_make_bin,
 	get_valuation_method,
 )
 
@@ -805,14 +805,13 @@
 	def update_bin(self):
 		# update bin for each warehouse
 		for warehouse, data in iteritems(self.data):
-			bin_doc = get_bin(self.item_code, warehouse)
-			bin_doc.update({
+			bin_record = get_or_make_bin(self.item_code, warehouse)
+
+			frappe.db.set_value('Bin', bin_record, {
 				"valuation_rate": data.valuation_rate,
 				"actual_qty": data.qty_after_transaction,
 				"stock_value": data.stock_value
 			})
-			bin_doc.flags.via_stock_ledger_entry = True
-			bin_doc.save(ignore_permissions=True)
 
 
 def get_previous_sle_of_current_voucher(args, exclude_current_voucher=False):
@@ -918,7 +917,7 @@
 		company = erpnext.get_default_company()
 
 	last_valuation_rate = frappe.db.sql("""select valuation_rate
-		from `tabStock Ledger Entry`
+		from `tabStock Ledger Entry` force index (item_warehouse)
 		where
 			item_code = %s
 			AND warehouse = %s
@@ -929,7 +928,7 @@
 	if not last_valuation_rate:
 		# Get valuation rate from last sle for the item against any warehouse
 		last_valuation_rate = frappe.db.sql("""select valuation_rate
-			from `tabStock Ledger Entry`
+			from `tabStock Ledger Entry` force index (item_code)
 			where
 				item_code = %s
 				AND valuation_rate > 0
diff --git a/erpnext/stock/utils.py b/erpnext/stock/utils.py
index aeb06e9..c4a0497 100644
--- a/erpnext/stock/utils.py
+++ b/erpnext/stock/utils.py
@@ -180,12 +180,27 @@
 	bin_obj.flags.ignore_permissions = True
 	return bin_obj
 
+def get_or_make_bin(item_code, warehouse) -> str:
+	bin_record = frappe.db.get_value('Bin', {'item_code': item_code, 'warehouse': warehouse})
+
+	if not bin_record:
+		bin_obj = frappe.get_doc({
+			"doctype": "Bin",
+			"item_code": item_code,
+			"warehouse": warehouse,
+		})
+		bin_obj.flags.ignore_permissions = 1
+		bin_obj.insert()
+		bin_record = bin_obj.name
+
+	return bin_record
+
 def update_bin(args, allow_negative_stock=False, via_landed_cost_voucher=False):
+	from erpnext.stock.doctype.bin.bin import update_stock
 	is_stock_item = frappe.get_cached_value('Item', args.get("item_code"), 'is_stock_item')
 	if is_stock_item:
-		bin = get_bin(args.get("item_code"), args.get("warehouse"))
-		bin.update_stock(args, allow_negative_stock, via_landed_cost_voucher)
-		return bin
+		bin_record = get_or_make_bin(args.get("item_code"), args.get("warehouse"))
+		update_stock(bin_record, args, allow_negative_stock, via_landed_cost_voucher)
 	else:
 		frappe.msgprint(_("Item {0} ignored since it is not a stock item").format(args.get("item_code")))