diff --git a/01_Day_Introduction/day_01/helloworld.js b/01_Day_Introduction/day_01/helloworld.js
new file mode 100644
index 0000000..5a68eb5
--- /dev/null
+++ b/01_Day_Introduction/day_01/helloworld.js
@@ -0,0 +1 @@
+console.log('Hello world');
\ No newline at end of file
diff --git a/01_Day_Introduction/day_01/index.html b/01_Day_Introduction/day_01/index.html
new file mode 100644
index 0000000..65df0f6
--- /dev/null
+++ b/01_Day_Introduction/day_01/index.html
@@ -0,0 +1,15 @@
+
+
+
+
+ JS practice
+
+
+
+ Day-01 of JS
+
+
+
+
+
+
\ No newline at end of file
diff --git a/01_Day_Introduction/day_01/introduction.js b/01_Day_Introduction/day_01/introduction.js
new file mode 100644
index 0000000..e69de29
diff --git a/01_Day_Introduction/day_01/main.js b/01_Day_Introduction/day_01/main.js
new file mode 100644
index 0000000..9cf3b66
--- /dev/null
+++ b/01_Day_Introduction/day_01/main.js
@@ -0,0 +1,11 @@
+console.log("Firstname is "+ firstName ,+ "Lastname is "+ lastName );
+console.log("Age is " + age );
+
+
+let maritualStatus = isMarried;
+if (isMarried != true )
+ {console.log("Unmarried");}
+else
+ {console.log("Married");}
+
+console.log("Maritual stastus" + maritualStatus);
diff --git a/01_Day_Introduction/day_01/variables.js b/01_Day_Introduction/day_01/variables.js
new file mode 100644
index 0000000..db17da3
--- /dev/null
+++ b/01_Day_Introduction/day_01/variables.js
@@ -0,0 +1,6 @@
+let firstName = 'Manoj Reddy';
+let lastName = 'Katta';
+let age='25';
+
+let isMarried = false;
+let weight = 76.8;