diff --git a/erpnext/manufacturing/doctype/bom/bom.js b/erpnext/manufacturing/doctype/bom/bom.js
index 7dedface675..a5d500f87c0 100644
--- a/erpnext/manufacturing/doctype/bom/bom.js
+++ b/erpnext/manufacturing/doctype/bom/bom.js
@@ -13,9 +13,6 @@ cur_frm.cscript.refresh = function(doc,dt,dn){
 		cur_frm.add_custom_button(__("Update Item Description"), cur_frm.cscript.update_item_desc,
 			"icon-tag", "btn-default");
 	}
-
-	cur_frm.cscript.with_operations(doc);
-	erpnext.bom.set_operation(doc);
 }
 
 cur_frm.cscript.update_cost = function() {
@@ -37,29 +34,6 @@ cur_frm.cscript.update_item_desc = function() {
 		}
 	})
 }
-
-cur_frm.cscript.with_operations = function(doc) {
-	cur_frm.fields_dict["items"].grid.set_column_disp("operation", doc.with_operations);
-	cur_frm.fields_dict["items"].grid.toggle_reqd("operation", doc.with_operations);
-}
-
-erpnext.bom.set_operation = function(doc) {
-	var op_table = doc["operations"] || [];
-	var operations = [];
-
-	for (var i=0, j=op_table.length; i<j; i++) {
-		operations[i] = (i+1);
-	}
-
-	frappe.meta.get_docfield("BOM Item", "operation", cur_frm.docname).options = operations.join("\n");
-
-	refresh_field("items");
-}
-
-cur_frm.cscript.operations_remove = function(){
-	erpnext.bom.set_operation(doc);
-}
-
 cur_frm.add_fetch("item", "description", "description");
 cur_frm.add_fetch("item", "item_name", "item_name");
 cur_frm.add_fetch("item", "stock_uom", "uom");
@@ -210,7 +184,6 @@ frappe.ui.form.on("BOM Operation", "operation", function(frm, cdt, cdn) {
 		callback: function (data) {
 			frappe.model.set_value(d.doctype, d.name, "opn_description", data.message.opn_description);
 			frappe.model.set_value(d.doctype, d.name, "workstation", data.message.workstation);
-			erpnext.bom.set_operation(frm.doc);
 		}
 	})
 });
@@ -231,3 +204,13 @@ frappe.ui.form.on("BOM Operation", "workstation", function(frm, cdt, cdn) {
 		}
 	})
 });
+
+frappe.ui.form.on("BOM Operation", "operations_remove", function(frm) {
+	erpnext.bom.calculate_op_cost(frm.doc);
+	erpnext.bom.calculate_total(frm.doc);
+});
+
+frappe.ui.form.on("BOM Item", "items_remove", function(frm) {
+	erpnext.bom.calculate_rm_cost(frm.doc);
+	erpnext.bom.calculate_total(frm.doc);
+});
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index 96f398fbc09..f77628a4176 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -196,8 +196,6 @@ class BOM(Document):
 	def clear_operations(self):
 		if not self.with_operations:
 			self.set('operations', [])
-			for d in self.get("items"):
-				d.operation = None
 
 	def validate_main_item(self):
 		""" Validate main FG item"""
@@ -216,21 +214,14 @@ class BOM(Document):
 			frappe.throw(_("Raw Materials cannot be blank."))
 		check_list = []
 		for m in self.get('items'):
-
 			if m.bom_no:
 				validate_bom_no(m.item_code, m.bom_no)
-
 			if flt(m.qty) <= 0:
 				frappe.throw(_("Quantity required for Item {0} in row {1}").format(m.item_code, m.idx))
-
-			self.check_if_item_repeated(m.item_code, m.operation, check_list)
-
-
-	def check_if_item_repeated(self, item, op, check_list):
-		if [cstr(item), cstr(op)] in check_list:
-			frappe.throw(_("Item {0} has been entered multiple times against same operation").format(item))
-		else:
-			check_list.append([cstr(item), cstr(op)])
+			check_list.append(cstr(m.item_code))
+		unique_chk_list = set(check_list)
+		if len(unique_chk_list)	!= len(check_list):
+			frappe.throw(_("Same item has been entered multiple times."))
 
 	def check_recursion(self):
 		""" Check whether recursion occurs in any bom"""
diff --git a/erpnext/manufacturing/doctype/bom/test_records.json b/erpnext/manufacturing/doctype/bom/test_records.json
index c37cef07e19..6f10b21e1cb 100644
--- a/erpnext/manufacturing/doctype/bom/test_records.json
+++ b/erpnext/manufacturing/doctype/bom/test_records.json
@@ -67,7 +67,6 @@
    ],
   "items": [
    {
-    "operation": 1,
     "amount": 5000.0,
     "doctype": "BOM Item",
     "item_code": "_Test Item",
@@ -77,7 +76,6 @@
     "stock_uom": "_Test UOM"
    },
    {
-    "operation": 1,
     "amount": 2000.0,
     "bom_no": "BOM/_Test Item Home Desktop Manufactured/001",
     "doctype": "BOM Item",
@@ -108,7 +106,6 @@
    ],
   "items": [
    {
-    "operation": 1,
     "amount": 5000.0,
     "doctype": "BOM Item",
     "item_code": "_Test Item",
diff --git a/erpnext/manufacturing/doctype/bom_item/bom_item.json b/erpnext/manufacturing/doctype/bom_item/bom_item.json
index 79287ebb44e..6786ead00bd 100644
--- a/erpnext/manufacturing/doctype/bom_item/bom_item.json
+++ b/erpnext/manufacturing/doctype/bom_item/bom_item.json
@@ -3,16 +3,6 @@
  "docstatus": 0, 
  "doctype": "DocType", 
  "fields": [
-  {
-   "fieldname": "operation", 
-   "fieldtype": "Select", 
-   "in_list_view": 1, 
-   "label": "Operation", 
-   "oldfieldname": "operation_no", 
-   "oldfieldtype": "Data", 
-   "permlevel": 0, 
-   "reqd": 0
-  }, 
   {
    "fieldname": "item_code", 
    "fieldtype": "Link", 
@@ -63,7 +53,7 @@
    "permlevel": 0, 
    "print_width": "250px", 
    "reqd": 0, 
-   "width": "25px"
+   "width": "250px"
   }, 
   {
    "fieldname": "quantity_and_rate", 
@@ -143,7 +133,7 @@
   }
  ], 
  "idx": 1, 
- "istable": 1, 
+ "istable": 1,
  "modified": "2015-01-20 13:28:35.152945", 
  "modified_by": "Administrator", 
  "module": "Manufacturing",