Hi sathya2496,
Set the html button style attribute to display none.
Then in document ready function show the button.
Check this example. Now please take its reference and correct your code.
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
$(function () {
$("#btnSave").show();
});
</script>
</head>
<body>
<button id="btnSave" type="button" style="display: none;">Save</button>
</body>
</html>
Demo