Consider below code:-
<script src = "//code.jquery.com/jquery-1.10.2.js"></script>
<input name = "vishal_neeraj">
<input name = "neeraj_vishal">
<input name = "vishal1_neeraj1">
<input name = "vishal2_neeraj">
<script>
$("input[name$='neeraj']").val("Neeraj is in Last" );
</script>