How to find rowindex when clicked a button in table

Try this:

$("table tr input").on('click', function(e){
   alert($(this).closest('td').parent()[0].sectionRowIndex);
});​

FIDDLE

You don't need ID

$('table').on('click', 'input[value="Remove"]', function(){
  $(this).closest('tr').remove();
});

Try using this: http://jsfiddle.net/jd9N4/1/

var elem = $('input[type="button"]');
$(elem).click(function() {
   alert($(this).closest('tr').index());
   $(this).closest('tr').remove();
});

IF you are adding row dynamically you can

 $(document).on('click', 'button', function () {
     var indexRow = this.parentNode.parentNode.rowIndex;
     document.getElementById("table-name").deleteRow(indexRow);
 });