diff --git a/erpnext/manufacturing/doctype/blanket_order/blanket_order.js b/erpnext/manufacturing/doctype/blanket_order/blanket_order.js
index 0bbf689..b6ad276 100644
--- a/erpnext/manufacturing/doctype/blanket_order/blanket_order.js
+++ b/erpnext/manufacturing/doctype/blanket_order/blanket_order.js
@@ -51,11 +51,20 @@
 
 	set_tc_name_filter: function(frm) {
 		if (frm.doc.blanket_order_type === 'Selling') {
+			frm.set_df_property("customer","reqd", 1)
+			frm.set_df_property("supplier","reqd", 0)
+			frm.set_value("supplier", "")
+
 			frm.set_query("tc_name", function() {
 				return { filters: { selling: 1 } };
 			});
 		}
 		if (frm.doc.blanket_order_type === 'Purchasing') {
+			frm.set_df_property("supplier","reqd", 1)			
+			frm.set_df_property("customer","reqd", 0)
+			frm.set_value("customer", "")
+
+
 			frm.set_query("tc_name", function() {
 				return { filters: { buying: 1 } };
 			});
diff --git a/erpnext/manufacturing/doctype/blanket_order/blanket_order.json b/erpnext/manufacturing/doctype/blanket_order/blanket_order.json
index 570d435..260e0b8 100644
--- a/erpnext/manufacturing/doctype/blanket_order/blanket_order.json
+++ b/erpnext/manufacturing/doctype/blanket_order/blanket_order.json
@@ -88,7 +88,8 @@
    "fieldname": "company",
    "fieldtype": "Link",
    "label": "Company",
-   "options": "Company"
+   "options": "Company",
+   "reqd": 1
   },
   {
    "fieldname": "section_break_12",
@@ -128,7 +129,7 @@
   }
  ],
  "is_submittable": 1,
- "modified": "2019-06-19 11:59:09.279607",
+ "modified": "2019-10-16 13:38:32.302316",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Blanket Order",
diff --git a/erpnext/manufacturing/doctype/blanket_order/blanket_order.py b/erpnext/manufacturing/doctype/blanket_order/blanket_order.py
index 822c7fc..faed707 100644
--- a/erpnext/manufacturing/doctype/blanket_order/blanket_order.py
+++ b/erpnext/manufacturing/doctype/blanket_order/blanket_order.py
@@ -4,13 +4,21 @@
 
 from __future__ import unicode_literals
 import frappe
-from frappe.utils import flt
+from frappe import _
+from frappe.utils import flt, getdate
 from frappe.model.document import Document
 from frappe.model.mapper import get_mapped_doc
 from erpnext.stock.doctype.item.item import get_item_defaults
 
 
 class BlanketOrder(Document):
+	def validate(self):
+		self.validate_dates()
+
+	def validate_dates(self):
+		if getdate(self.from_date) > getdate(self.to_date):
+			frappe.throw(_("From date cannot be greater than To date")) 
+
 	def update_ordered_qty(self):
 		ref_doctype = "Sales Order" if self.blanket_order_type == "Selling" else "Purchase Order"
 		item_ordered_qty = frappe._dict(frappe.db.sql("""