diff --git a/erpnext/payroll/doctype/gratuity/gratuity.py b/erpnext/payroll/doctype/gratuity/gratuity.py
index 6b62414..9f59280 100644
--- a/erpnext/payroll/doctype/gratuity/gratuity.py
+++ b/erpnext/payroll/doctype/gratuity/gratuity.py
@@ -6,7 +6,7 @@
 import frappe
 from frappe import _, bold
 from frappe.model.document import Document
-from frappe.utils import flt, get_datetime
+from frappe.utils import flt, get_datetime, get_link_to_form
 from math import floor
 
 from frappe.utils import get_datetime
@@ -43,8 +43,7 @@
 		""", (self.name, self.employee), as_dict=1)[0].paid_amount
 
 		if flt(paid_amount) > self.amount:
-			frappe.throw(_("Row {0}# Paid Amount cannot be greater than Total amount"),
-				EmployeeAdvanceOverPayment)
+			frappe.throw(_("Row {0}# Paid Amount cannot be greater than Total amount"))
 
 
 		self.db_set("paid_amount", paid_amount)
@@ -65,7 +64,7 @@
 
 	date_of_joining, relieving_date = frappe.db.get_value('Employee', employee, ['date_of_joining', 'relieving_date'])
 	if not relieving_date:
-		frappe.throw(_("Please set Relieving Date for employee: {0}").format(bold(employee)))
+		frappe.throw(_("Please set Relieving Date for employee: {0}").format(bold(get_link_to_form("Employee", employee))))
 
 	method = frappe.db.get_value("Gratuity Rule", gratuity_rule, "work_experience_calculation_function")
 
@@ -108,11 +107,13 @@
 		filters["leave_type"] =  ("IN", lwp_leave_types)
 
 
-	record = frappe.get_all("Attendance", filters=filters, fields = ["COUNT(name) as total_lwp"], debug = 1)
+	record = frappe.get_all("Attendance", filters=filters, fields = ["COUNT(name) as total_lwp"])
 	return record[0].total_lwp if len(record) else 0
 
 def calculate_gratuity_amount(employee, gratuity_rule, experience):
 	applicable_earnings_component = frappe.get_all("Gratuity Applicable Component", filters= {'parent': gratuity_rule}, fields=["salary_component"])
+	if len(applicable_earnings_component) == 0:
+		frappe.throw(_("No Applicable Earnings Component found for Gratuity Rule: {0}").format(bold(get_link_to_form("Gratuity Rule",gratuity_rule))))
 	applicable_earnings_component = [component.salary_component for component in applicable_earnings_component]
 
 	slabs = get_gratuity_rule_slabs(gratuity_rule)
@@ -137,16 +138,16 @@
 				slab_found = True
 				break
 
-			if experience > slab.to_year and experience > slab.from_year:
+			if experience > slab.to_year and experience > slab.from_year and slab.to_year !=0:
 				gratuity_amount += (slab.to_year - slab.from_year) * total_applicable_components_amount * slab.fraction_of_applicable_earnings
 				year_left -= (slab.to_year - slab.from_year)
 				slab_found = True
-			elif slab.from_year <= experience < slab.to_year:
+			elif slab.from_year <= experience and (experience < slab.to_year or slab.to_year == 0):
 				gratuity_amount += year_left * total_applicable_components_amount * slab.fraction_of_applicable_earnings
 				slab_found = True
 
-		if not slab_found:
-			frappe.throw(_("No Suitable Slab found for Calculation of gratuity amount in Gratuity Rule: {0}").format(bold(gratuity_rule)))
+	if not slab_found:
+		frappe.throw(_("No Suitable Slab found for Calculation of gratuity amount in Gratuity Rule: {0}").format(bold(gratuity_rule)))
 
 
 	return gratuity_amount
@@ -174,7 +175,7 @@
 	return total_applicable_components_amount
 
 def get_gratuity_rule_slabs(gratuity_rule):
-	return frappe.get_all("Gratuity Rule Slab", filters= {'parent': gratuity_rule}, fields = ["*"])
+	return frappe.get_all("Gratuity Rule Slab", filters= {'parent': gratuity_rule}, fields = ["*"], order_by="idx")
 
 def get_salary_structure(employee):
 	return frappe.get_list("Salary Structure Assignment", filters = {"employee": employee, 'docstatus': 1}, fields=["from_date", "salary_structure"], order_by = "from_date desc")[0].salary_structure
diff --git a/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.js b/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.js
index feaf6a8..69099bb 100644
--- a/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.js
+++ b/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.js
@@ -19,6 +19,7 @@
 		So, on row addition setting current_row.from = previous row.to.
 		On to_year insert we have to check that it is not less than from_year
 
+		Wrong order may lead to Wrong Calculation
 	*/
 
 
@@ -33,7 +34,7 @@
 
 	to_year(frm, cdt, cdn) {
 		let row = locals[cdt][cdn];
-		if (row.to_year <= row.from_year){
+		if (row.to_year <= row.from_year && row.to_year === 0){
 			frappe.throw(__("To(Year) year can not be less than From(year) "));
 		}
 	}
diff --git a/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.json b/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.json
index 41d5a97..18053ba 100644
--- a/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.json
+++ b/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.json
@@ -28,7 +28,7 @@
    "fieldtype": "Select",
    "in_list_view": 1,
    "label": "Calculate Gratuity Amount Based on",
-   "options": "Current slab\nSum of all previous slabs",
+   "options": "Current Slab\nSum of all previous slabs",
    "reqd": 1
   },
   {
@@ -76,7 +76,7 @@
   }
  ],
  "links": [],
- "modified": "2020-08-14 16:23:05.287545",
+ "modified": "2020-08-17 14:17:02.594665",
  "modified_by": "Administrator",
  "module": "Payroll",
  "name": "Gratuity Rule",
diff --git a/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.py b/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.py
index 71adbe5..00b5752 100644
--- a/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.py
+++ b/erpnext/payroll/doctype/gratuity_rule/gratuity_rule.py
@@ -11,8 +11,8 @@
 
 	def validate(self):
 		for current_slab in self.gratuity_rule_slabs:
-			if current_slab.from_year > current_slab.to_year:
-				frappe(_("Row {0}: From (Year) can not be greater than To (Year)").format(slab.idx))
+			if (current_slab.from_year > current_slab.to_year) and current_slab.to_year != 0:
+				frappe(_("Row {0}: From (Year) can not be greater than To (Year)").format(current_slab.idx))
 
 			if current_slab.to_year == 0 and current_slab.from_year == 0 and len(self.gratuity_rule_slabs) > 1:
 				frappe.throw(_("You can not define multiple slabs if you have a slab with no lower and upper limits."))
diff --git a/erpnext/payroll/doctype/gratuity_rule_slab/gratuity_rule_slab.json b/erpnext/payroll/doctype/gratuity_rule_slab/gratuity_rule_slab.json
index dd642f4..bc37b0f 100644
--- a/erpnext/payroll/doctype/gratuity_rule_slab/gratuity_rule_slab.json
+++ b/erpnext/payroll/doctype/gratuity_rule_slab/gratuity_rule_slab.json
@@ -37,7 +37,7 @@
  ],
  "istable": 1,
  "links": [],
- "modified": "2020-08-14 15:23:12.041375",
+ "modified": "2020-08-17 14:09:56.781712",
  "modified_by": "Administrator",
  "module": "Payroll",
  "name": "Gratuity Rule Slab",
diff --git a/erpnext/regional/united_arab_emirates/setup.py b/erpnext/regional/united_arab_emirates/setup.py
index 690c6fe..f23698e 100644
--- a/erpnext/regional/united_arab_emirates/setup.py
+++ b/erpnext/regional/united_arab_emirates/setup.py
@@ -161,7 +161,7 @@
 
 	# Rule Under Limited Contract
 	rule_1 = frappe.new_doc("Gratuity Rule")
-	rule_1.name = "Rule Under Limited Contract"
+	rule_1.name = "Rule Under Limited Contract (UAE)"
 	rule_1.calculate_gratuity_amount_based_on = "Sum of all previous slabs"
 	rule_1.work_experience_calculation_method = "Take Exact Completed Years"
 	rule_1.minimum_year_for_gratuity = 1
@@ -186,7 +186,7 @@
 
 	# Rule Under Unlimited Contract on termination
 	rule_2 = frappe.new_doc("Gratuity Rule")
-	rule_2.name = "Rule Under Unlimited Contract on termination"
+	rule_2.name = "Rule Under Unlimited Contract on termination (UAE)"
 	rule_2.calculate_gratuity_amount_based_on = "Current Slab"
 	rule_2.work_experience_calculation_method = "Take Exact Completed Years"
 	rule_2.minimum_year_for_gratuity = 1
@@ -211,7 +211,7 @@
 
 	# Rule Under Unlimited Contract
 	rule_3 = frappe.new_doc("Gratuity Rule")
-	rule_3.name = "Rule Under Unlimited Contract on resignation"
+	rule_3.name = "Rule Under Unlimited Contract on resignation (UAE)"
 	rule_3.calculate_gratuity_amount_based_on = "Current Slab"
 	rule_3.work_experience_calculation_method = "Take Exact Completed Years"
 	rule_3.minimum_year_for_gratuity = 1