diff --git a/test/test.lua b/test/test.lua
index e12cabf4..0d5d7b9c 100644
--- a/test/test.lua
+++ b/test/test.lua
@@ -209,3 +209,19 @@ print("Concatenated string",string1..string2)
 print("Length of string1 is ",string.len(string1))
 print("Repeated String",string.rep(string1,3))
 print("********************************************")
+
+print("****************OS Functions *******")
+fruits = {"banana","orange","apple"}
+print("Table contents are ",fruits)
+print("Concatenated string ",table.concat(fruits))
+print("Concatenated string ",table.concat(fruits,", "))
+print("Concatenated string ",table.concat(fruits,", ", 2,3))
+print("Inserting new fruit Mango")
+table.insert(fruits,"mango")
+print("Fruit table now is",fruits)
+print("Concatenated string ",table.concat(fruits,", "))
+print("The maximum elements in table is",table.maxn(fruits))
+print("The maximum elements in table is",table.remove(fruits))
+fruits = {"banana","orange","apple","grapes"}
+print("The maximum elements in table is",table.sort(fruits))
+print("********************************************")