diff --git a/Bit-Manipulation/BinaryCountSetBits.js b/Bit-Manipulation/BinaryCountSetBits.js
new file mode 100644
index 000000000..bb16afe94
--- /dev/null
+++ b/Bit-Manipulation/BinaryCountSetBits.js
@@ -0,0 +1,17 @@
+/*
+    author: vivek9patel
+    license: GPL-3.0 or later
+
+    This script will find number of 1's
+    in binary representain of given number
+
+*/
+
+function BinaryCountSetBits (a) {
+  'use strict'
+  // convert number into binary representation and return number of set bits in binary representaion
+  return a.toString(2).split('1').length - 1
+}
+
+// Run `binary_and` Function to find the binary and operation
+console.log(BinaryCountSetBits(251))