Filters added
diff --git a/erpnext/manufacturing/doctype/production_order/production_order.py b/erpnext/manufacturing/doctype/production_order/production_order.py
index 8386133..a68b3a1 100644
--- a/erpnext/manufacturing/doctype/production_order/production_order.py
+++ b/erpnext/manufacturing/doctype/production_order/production_order.py
@@ -2,7 +2,7 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
-import frappe
+import frappe, json
 
 from frappe.utils import flt, nowdate
 from frappe import _
@@ -183,16 +183,24 @@
 	return stock_entry.as_dict()
 
 @frappe.whitelist()
-def get_events(start, end):
+def get_events(start, end, filters=None):
 	from frappe.desk.reportview import build_match_conditions
 	if not frappe.has_permission("Production Order"):
 		frappe.msgprint(_("No Permission"), raise_exception=1)
 
+	conditions = build_match_conditions("Production Order")
+	conditions = conditions and (" and " + conditions) or ""
+	if filters:
+		filters = json.loads(filters)
+		for key in filters:
+			if filters[key]:
+				conditions += " and " + key + ' = "' + filters[key].replace('"', '\"') + '"'
+
 	data = frappe.db.sql("""select name,production_item, start_date,end_date from `tabProduction Order`
 		where ((ifnull(start_date, '0000-00-00')!= '0000-00-00') \
 				and (start_date between %(start)s and %(end)s) \
 			or ((ifnull(start_date, '0000-00-00')!= '0000-00-00') \
-				and end_date between %(start)s and %(end)s))""", {
+				and end_date between %(start)s and %(end)s)){conditions}""".format(conditions=conditions), {
 			"start": start,
 			"end": end
 			}, as_dict=True, update={"allDay": 0})
diff --git a/erpnext/manufacturing/doctype/production_order/production_order_calendar.js b/erpnext/manufacturing/doctype/production_order/production_order_calendar.js
index 68bbc28..d4011a3 100644
--- a/erpnext/manufacturing/doctype/production_order/production_order_calendar.js
+++ b/erpnext/manufacturing/doctype/production_order/production_order_calendar.js
@@ -10,5 +10,25 @@
 		"allDay": "allDay"
 	},
 	gantt: true,
+	filters: [
+		{
+			"fieldtype": "Link",
+			"fieldname": "sales_order",
+			"options": "Sales Order",
+			"label": __("Sales Order")
+		},
+		{
+			"fieldtype": "Link",
+			"fieldname": "production_item",
+			"options": "Item",
+			"label": __("Production Item")	
+		},
+		{
+			"fieldtype": "Link",
+			"fieldname": "wip_warehouse",
+			"options": "Warehouse",
+			"label": __("WIP Warehouse")
+		}
+	],
 	get_events_method: "erpnext.manufacturing.doctype.production_order.production_order.get_events"
 }
\ No newline at end of file