app.get('/delete:id', (req, res,next) => {
      var id = req.params.id;
      console.log(id);
      var myquery = { Empid:id};
      db.collection("emp").remove(myquery, function(err, obj) {
      if (err) throw err;
      res.redirect('/');
      console.log(obj.result.n + " document(s) deleted");
      db.close();
      });
  });

<table class="emp" border="1" id="emptable">
  <thead>
  <tr>
  <th>_id</th>
  <th>EmpId</th>
  <th>Name</th>
  <th>Mobile</th>
  <th>Email_id</th>
  <th>Designation</th>
  <th>Company</th>
  <th>Experience</th>
  <th>Work Details</th>
  <th>Address</th>
  <th>City</th>
  <th>State</th>
  <th>PinCode</th>
  <th>Action</th>
  </tr>
 </thead>
<tbody>
<% for(var i=0; i < emp.length; i++) { %>
<tr>
<td><%= emp[i]._id %></td>
<td><%= emp[i].Empid %></td>
<td><%= emp[i].Name %></td>

<td><%= emp[i].Mobile %></td>
<td><%= emp[i].Email_id %></td>
<td><%= emp[i].Designation %></td>

<td><%= emp[i].Company %></td>
<td><%= emp[i].Experience %></td>
<td><%= emp[i].Work %></td>s
<td><%= emp[i].Address%></td>
<td><%= emp[i].City %></td>
<td><%= emp[i].State %></td>
<td><%= emp[i].Pincode %></td>
<td><a href='/delete' action='/'><%id= emp[i].Empid %>Delete</a>
</td>