diff --git a/erpnext/accounts/report/tds_computation_summary/tds_computation_summary.py b/erpnext/accounts/report/tds_computation_summary/tds_computation_summary.py
index e15715d..6b9df41 100644
--- a/erpnext/accounts/report/tds_computation_summary/tds_computation_summary.py
+++ b/erpnext/accounts/report/tds_computation_summary/tds_computation_summary.py
@@ -75,7 +75,8 @@
 		select voucher_no, credit
 		from `tabGL Entry`
 		where party in (%s) and credit > 0
-			and company=%s and posting_date between %s and %s
+			and company=%s and is_cancelled = 0
+			and posting_date between %s and %s
 	""", (supplier, company, from_date, to_date), as_dict=1)
 
 	supplier_credit_amount = flt(sum(d.credit for d in entries))
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index c32a8a9..9da461f 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -713,7 +713,8 @@
 			"conversion_rate": 1, # Passed conversion rate as 1 purposefully, as conversion rate is applied at the end of the function
 			"conversion_factor": args.get("conversion_factor") or 1,
 			"plc_conversion_rate": 1,
-			"ignore_party": True
+			"ignore_party": True,
+			"ignore_conversion_rate": True
 		})
 		item_doc = frappe.get_cached_doc("Item", args.get("item_code"))
 		out = frappe._dict()
diff --git a/erpnext/portal/product_configurator/utils.py b/erpnext/portal/product_configurator/utils.py
index d77eb2c..211b94a 100644
--- a/erpnext/portal/product_configurator/utils.py
+++ b/erpnext/portal/product_configurator/utils.py
@@ -2,6 +2,7 @@
 from frappe.utils import cint
 from erpnext.portal.product_configurator.item_variants_cache import ItemVariantsCacheManager
 from erpnext.shopping_cart.product_info import get_product_info_for_website
+from erpnext.setup.doctype.item_group.item_group import get_child_groups
 
 def get_field_filter_data():
 	product_settings = get_product_settings()
@@ -89,6 +90,7 @@
 def get_products_html_for_website(field_filters=None, attribute_filters=None):
 	field_filters = frappe.parse_json(field_filters)
 	attribute_filters = frappe.parse_json(attribute_filters)
+	set_item_group_filters(field_filters)
 
 	items = get_products_for_website(field_filters, attribute_filters)
 	html = ''.join(get_html_for_items(items))
@@ -98,6 +100,10 @@
 
 	return html
 
+def set_item_group_filters(field_filters):
+	if 'item_group' in field_filters:
+		field_filters['item_group'] = [ig[0] for ig in get_child_groups(field_filters['item_group'])]
+
 
 def get_item_codes_by_attributes(attribute_filters, template_item_code=None):
 	items = []
diff --git a/erpnext/public/js/controllers/taxes_and_totals.js b/erpnext/public/js/controllers/taxes_and_totals.js
index 1de9ec1..52efbb5 100644
--- a/erpnext/public/js/controllers/taxes_and_totals.js
+++ b/erpnext/public/js/controllers/taxes_and_totals.js
@@ -67,6 +67,8 @@
 
 	calculate_discount_amount: function(){
 		if (frappe.meta.get_docfield(this.frm.doc.doctype, "discount_amount")) {
+			this.calculate_item_values();
+			this.calculate_net_total();
 			this.set_discount_amount();
 			this.apply_discount_amount();
 		}
diff --git a/erpnext/regional/india/setup.py b/erpnext/regional/india/setup.py
index 5f9d5ed..9265460 100644
--- a/erpnext/regional/india/setup.py
+++ b/erpnext/regional/india/setup.py
@@ -12,7 +12,10 @@
 from frappe.utils import today
 
 def setup(company=None, patch=True):
-	setup_company_independent_fixtures(patch=patch)
+	# Company independent fixtures should be called only once at the first company setup
+	if frappe.db.count('Company', {'country': 'India'}) <=1:
+		setup_company_independent_fixtures(patch=patch)
+
 	if not patch:
 		make_fixtures(company)
 
@@ -122,10 +125,12 @@
 def make_property_setters(patch=False):
 	# GST rules do not allow for an invoice no. bigger than 16 characters
 	journal_entry_types = frappe.get_meta("Journal Entry").get_options("voucher_type").split("\n") + ['Reversal Of ITC']
+	sales_invoice_series = ['SINV-.YY.-', 'SRET-.YY.-', ''] + frappe.get_meta("Sales Invoice").get_options("naming_series").split("\n")
+	purchase_invoice_series = ['PINV-.YY.-', 'PRET-.YY.-', ''] + frappe.get_meta("Purchase Invoice").get_options("naming_series").split("\n")
 
 	if not patch:
-		make_property_setter('Sales Invoice', 'naming_series', 'options', 'SINV-.YY.-\nSRET-.YY.-', '')
-		make_property_setter('Purchase Invoice', 'naming_series', 'options', 'PINV-.YY.-\nPRET-.YY.-', '')
+		make_property_setter('Sales Invoice', 'naming_series', 'options', '\n'.join(sales_invoice_series), '')
+		make_property_setter('Purchase Invoice', 'naming_series', 'options', '\n'.join(purchase_invoice_series), '')
 		make_property_setter('Journal Entry', 'voucher_type', 'options', '\n'.join(journal_entry_types), '')
 
 def make_custom_fields(update=True):
@@ -786,7 +791,7 @@
 			doc.flags.ignore_mandatory = True
 			doc.insert()
 		else:
-			doc = frappe.get_doc("Tax Withholding Category", d.get("name"))
+			doc = frappe.get_doc("Tax Withholding Category", d.get("name"), for_update=True)
 
 			if accounts:
 				doc.append("accounts", accounts[0])
diff --git a/erpnext/regional/report/gstr_1/gstr_1.py b/erpnext/regional/report/gstr_1/gstr_1.py
index 1096159..cfcb8c3 100644
--- a/erpnext/regional/report/gstr_1/gstr_1.py
+++ b/erpnext/regional/report/gstr_1/gstr_1.py
@@ -584,7 +584,7 @@
 def get_json(filters, report_name, data):
 	filters = json.loads(filters)
 	report_data = json.loads(data)
-	gstin = get_company_gstin_number(filters["company"], filters["company_address"])
+	gstin = get_company_gstin_number(filters.get("company"), filters.get("company_address"))
 
 	fp = "%02d%s" % (getdate(filters["to_date"]).month, getdate(filters["to_date"]).year)
 
diff --git a/erpnext/selling/page/point_of_sale/pos_item_cart.js b/erpnext/selling/page/point_of_sale/pos_item_cart.js
index 38508c2..f7b2c1d 100644
--- a/erpnext/selling/page/point_of_sale/pos_item_cart.js
+++ b/erpnext/selling/page/point_of_sale/pos_item_cart.js
@@ -965,8 +965,23 @@
 		});
 	}
 
+	attach_refresh_field_event(frm) {
+		$(frm.wrapper).off('refresh-fields');
+		$(frm.wrapper).on('refresh-fields', () => {
+			if (frm.doc.items.length) {
+				frm.doc.items.forEach(item => {
+					this.update_item_html(item);
+				});
+			}
+			this.update_totals_section(frm);
+		});
+	}
+
 	load_invoice() {
 		const frm = this.events.get_frm();
+		
+		this.attach_refresh_field_event(frm);
+
 		this.fetch_customer_details(frm.doc.customer).then(() => {
 			this.events.customer_details_updated(this.customer_info);
 			this.update_customer_section();
diff --git a/erpnext/setup/doctype/company/company.py b/erpnext/setup/doctype/company/company.py
index 36a7d20..8755125 100644
--- a/erpnext/setup/doctype/company/company.py
+++ b/erpnext/setup/doctype/company/company.py
@@ -291,7 +291,7 @@
 		cash = frappe.db.get_value('Mode of Payment', {'type': 'Cash'}, 'name')
 		if cash and self.default_cash_account \
 			and not frappe.db.get_value('Mode of Payment Account', {'company': self.name, 'parent': cash}):
-			mode_of_payment = frappe.get_doc('Mode of Payment', cash)
+			mode_of_payment = frappe.get_doc('Mode of Payment', cash, for_update=True)
 			mode_of_payment.append('accounts', {
 				'company': self.name,
 				'default_account': self.default_cash_account
diff --git a/erpnext/setup/doctype/item_group/item_group.py b/erpnext/setup/doctype/item_group/item_group.py
index 1c72ceb..5fcad00 100644
--- a/erpnext/setup/doctype/item_group/item_group.py
+++ b/erpnext/setup/doctype/item_group/item_group.py
@@ -87,8 +87,8 @@
 		if not field_filters:
 			field_filters = {}
 
-		# Ensure the query remains within current item group
-		field_filters['item_group'] = self.name
+		# Ensure the query remains within current item group & sub group
+		field_filters['item_group'] = [ig[0] for ig in get_child_groups(self.name)]
 
 		engine = ProductQuery()
 		context.items = engine.query(attribute_filters, field_filters, search, start, item_group=self.name)
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 cb939e6..93482e8 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
@@ -89,17 +89,16 @@
 		if item_det.is_stock_item != 1:
 			frappe.throw(_("Item {0} must be a stock Item").format(self.item_code))
 
-		# check if batch number is required
-		if self.voucher_type != 'Stock Reconciliation':
-			if item_det.has_batch_no == 1:
-				batch_item = self.item_code if self.item_code == item_det.item_name else self.item_code + ":" +  item_det.item_name
-				if not self.batch_no:
-					frappe.throw(_("Batch number is mandatory for Item {0}").format(batch_item))
-				elif not frappe.db.get_value("Batch",{"item": self.item_code, "name": self.batch_no}):
-					frappe.throw(_("{0} is not a valid Batch Number for Item {1}").format(self.batch_no, batch_item))
+		# check if batch number is valid
+		if item_det.has_batch_no == 1:
+			batch_item = self.item_code if self.item_code == item_det.item_name else self.item_code + ":" + item_det.item_name
+			if not self.batch_no:
+				frappe.throw(_("Batch number is mandatory for Item {0}").format(batch_item))
+			elif not frappe.db.get_value("Batch",{"item": self.item_code, "name": self.batch_no}):
+				frappe.throw(_("{0} is not a valid Batch Number for Item {1}").format(self.batch_no, batch_item))
 
-			elif item_det.has_batch_no == 0 and self.batch_no and self.is_cancelled == 0:
-				frappe.throw(_("The Item {0} cannot have Batch").format(self.item_code))
+		elif item_det.has_batch_no == 0 and self.batch_no and self.is_cancelled == 0:
+			frappe.throw(_("The Item {0} cannot have Batch").format(self.item_code))
 
 		if item_det.has_variants:
 			frappe.throw(_("Stock cannot exist for Item {0} since has variants").format(self.item_code),
diff --git a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js
index a01db80..349e59f 100644
--- a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js
+++ b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js
@@ -17,6 +17,14 @@
 				}
 			}
 		});
+		frm.set_query("batch_no", "items", function(doc, cdt, cdn) {
+			var item = locals[cdt][cdn];
+			return {
+				filters: {
+					'item': item.item_code
+				}
+			};
+		});
 
 		if (frm.doc.company) {
 			erpnext.queries.setup_queries(frm, "Warehouse", function() {
diff --git a/erpnext/stock/doctype/stock_reconciliation/test_stock_reconciliation.py b/erpnext/stock/doctype/stock_reconciliation/test_stock_reconciliation.py
index 84cdc49..c192582 100644
--- a/erpnext/stock/doctype/stock_reconciliation/test_stock_reconciliation.py
+++ b/erpnext/stock/doctype/stock_reconciliation/test_stock_reconciliation.py
@@ -16,6 +16,7 @@
 from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
 from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import make_purchase_receipt
 
+
 class TestStockReconciliation(unittest.TestCase):
 	@classmethod
 	def setUpClass(self):
@@ -352,6 +353,26 @@
 		dn2.cancel()
 		pr1.cancel()
 
+	def test_valid_batch(self):
+		create_batch_item_with_batch("Testing Batch Item 1", "001")
+		create_batch_item_with_batch("Testing Batch Item 2", "002")
+		sr = create_stock_reconciliation(item_code="Testing Batch Item 1", qty=1, rate=100, batch_no="002"
+			, do_not_submit=True)
+		self.assertRaises(frappe.ValidationError, sr.submit)
+
+def create_batch_item_with_batch(item_name, batch_id):
+	batch_item_doc = create_item(item_name, is_stock_item=1)
+	if not batch_item_doc.has_batch_no:
+		batch_item_doc.has_batch_no = 1
+		batch_item_doc.create_new_batch = 1
+		batch_item_doc.save(ignore_permissions=True)
+
+	if not frappe.db.exists('Batch', batch_id):
+		b = frappe.new_doc('Batch')
+		b.item = item_name
+		b.batch_id = batch_id
+		b.save()
+
 def insert_existing_sle(warehouse):
 	from erpnext.stock.doctype.stock_entry.test_stock_entry import make_stock_entry
 
diff --git a/erpnext/stock/get_item_details.py b/erpnext/stock/get_item_details.py
index ca174a3..4657700 100644
--- a/erpnext/stock/get_item_details.py
+++ b/erpnext/stock/get_item_details.py
@@ -441,7 +441,7 @@
 
 	if item_tax_templates is None:
 		item_tax_templates = {}
-	
+
 	if item_rates is None:
 		item_rates = {}
 
@@ -807,10 +807,14 @@
 def validate_conversion_rate(args, meta):
 	from erpnext.controllers.accounts_controller import validate_conversion_rate
 
-	if (not args.conversion_rate
-		and args.currency==frappe.get_cached_value('Company',  args.company,  "default_currency")):
+	company_currency = frappe.get_cached_value('Company',  args.company,  "default_currency")
+	if (not args.conversion_rate and args.currency==company_currency):
 		args.conversion_rate = 1.0
 
+	if (not args.ignore_conversion_rate and args.conversion_rate == 1 and args.currency!=company_currency):
+		args.conversion_rate = get_exchange_rate(args.currency,
+			company_currency, args.transaction_date, "for_buying") or 1.0
+
 	# validate currency conversion rate
 	validate_conversion_rate(args.currency, args.conversion_rate,
 		meta.get_label("conversion_rate"), args.company)
diff --git a/erpnext/templates/generators/item_group.html b/erpnext/templates/generators/item_group.html
index 393c3a4..9050cc3 100644
--- a/erpnext/templates/generators/item_group.html
+++ b/erpnext/templates/generators/item_group.html
@@ -9,7 +9,7 @@
 {% endblock %}
 
 {% block page_content %}
-<div class="item-group-content" itemscope itemtype="http://schema.org/Product">
+<div class="item-group-content" itemscope itemtype="http://schema.org/Product" data-item-group="{{ name }}">
 	<div class="item-group-slideshow">
 		{% if slideshow %}<!-- slideshow -->
 			{{ web_block(
@@ -127,15 +127,36 @@
 			</script>
 		</div>
 	</div>
-	<div class="row">
-		<div class="col-12">
+	<div class="row mt-6">
+		<div class="col-3">
+		</div>
+		<div class="col-9">
 			{% if frappe.form_dict.start|int > 0 %}
-			<button class="btn btn-outline-secondary btn-prev" data-start="{{ frappe.form_dict.start|int - page_length }}">{{ _("Prev") }}</button>
+			<button class="btn btn-outline-secondary btn-prev" data-start="{{ frappe.form_dict.start|int - page_length }}">
+				{{ _("Prev") }}
+			</button>
 			{% endif %}
 			{% if items|length >= page_length %}
-			<button class="btn btn-outline-secondary btn-next" data-start="{{ frappe.form_dict.start|int + page_length }}">{{ _("Next") }}</button>
+			<button class="btn btn-outline-secondary btn-next" data-start="{{ frappe.form_dict.start|int + page_length }}"
+				style="float: right;">
+				{{ _("Next") }}
+			</button>
 			{% endif %}
 		</div>
 	</div>
 </div>
+
+<script>
+	frappe.ready(() => {
+		$('.btn-prev, .btn-next').click((e) => {
+			const $btn = $(e.target);
+			$btn.prop('disabled', true);
+			const start = $btn.data('start');
+			let query_params = frappe.utils.get_query_params();
+			query_params.start = start;
+			let path = window.location.pathname + '?' + frappe.utils.get_url_from_dict(query_params);
+			window.location.href = path;
+		});
+	});
+</script>
 {% endblock %}
\ No newline at end of file
diff --git a/erpnext/www/all-products/index.js b/erpnext/www/all-products/index.js
index 0721056..1c641b5 100644
--- a/erpnext/www/all-products/index.js
+++ b/erpnext/www/all-products/index.js
@@ -124,6 +124,10 @@
 				attribute_filters: if_key_exists(attribute_filters)
 			};
 
+			const item_group = $(".item-group-content").data('item-group');
+			if (item_group) {
+				Object.assign(field_filters, { item_group });
+			}
 			return new Promise((resolve, reject) => {
 				frappe.call('erpnext.portal.product_configurator.utils.get_products_html_for_website', args)
 					.then(r => {