Data retrieval not working

<?php
            $con= mysql_connect("localhost","root","pritam");

            if (!$con)
            {
                die("Can not connect: " . mysql_error());
            }
            mysql_select_db("new_blog",$con);


            if(isset($_POST['update']))
            {
                $UpdateQuery = "UPDATE user_posts SET title='$_POST[title]', body='$_POST[body]' where post_id='$_POST[hidden]'";
                mysql_query($UpdateQuery, $con);
                echo "<script type='text/javascript'> alert('Post Successfully Modified') </script>";
            };

            if(isset($_POST['delete']))
            {
                $DeleteQuery = "DELETE FROM user_posts where post_id='$_POST[hidden]'";
                mysql_query($DeleteQuery, $con);
                echo "<script type='text/javascript'> alert('Post Successfully Deleted') </script>";
            };

            $sql = "SELECT * FROM user_posts";
            $myData = mysql_query($sql,$con);

            echo "<table id=blog_post >
            <tr>
            <th style='font-size:25px;'>Title</th>
            <th style='font-size:25px;'>Body</th>
            <th colspan=2 style='font-size:25px;'>Operation</th>
            </tr>";
            while($record = mysql_fetch_array($myData))
            {
                echo "<form action=Add_Update_Delete_Post.php method=post>";
                echo "<tr>";
                echo "<td>" . "<input type='text' style='width:300px; height:30px; font-size:18px;' name='title' value=" . $record['title'] . "/> </td>";
                echo "<td>" . "<textarea rows=10 cols=60  name='body' value=" . $record['body'] . " /></textarea></td>";
                echo "<td>" . "<input type='submit' name='update' value='Modify' style='width:200px; height:35px; font-size:16px;'>" . " </td>";
                echo "<td>" . "<input type='submit' name='delete' value='Delete' style='width:200px; height:35px; font-size:16px;'>" . " </td>";
                echo "<td>" . "<input type='hidden' style='border:0;' name='hidden' value=" . $record['post_id'] . " </td>";
                echo "</tr>";
                echo "</form>";
            }
            echo "</table>";
            mysql_close($con);
        ?>