Try this,
$('td').click(function(){
var row_index = $(this).parent().index();
var col_index = $(this).index();
});
If you need the index of table contain td then you can change it to
var row_index = $(this).parent('table').index();
Try this,
$('td').click(function(){
var row_index = $(this).parent().index();
var col_index = $(this).index();
});
If you need the index of table contain td then you can change it to
var row_index = $(this).parent('table').index();