Thank yo very much, i did the above script but not working its gives me message :
Error in Function 
SPServices. SPAutocomplete
ColumnName: Personnel No
Message
Column is not an input control or is not found on page
script used:
<script type="text/javascript">
    $(document).ready(function () {
        $().SPServices.SPAutocomplete({
            sourceList: "< Manpower >", // Source List Name
            sourceColumn: "Title", // Source List Column from where you want to fetch it.
            columnName: "Personnel No", // Destination List Column where you want to add it.
            ignoreCase: true,
            numChars: 2,
            slideDownSpeed: 50,
           debug: true
        });
});
</script>