dd-mmy-yy of scheduled_date must be same as that of date picker
<div class="reshedule_meeting" data-id="<?php echo $data['id'];?>" scheduled_with=<?php echo $data['scheduled_with']; ?> scheduled_date=<?php echo $scheduled_date; ?> scheduled_time=<?php echo $data['scheduled_time']; ?> ><a>Reshedule</a></div>
var scheduled_date = jQuery(this).attr('scheduled_date');
var scheduled_time = jQuery(this).attr('scheduled_time');
jQuery("#datepicker").datepicker('setDate',scheduled_date );
jQuery("#timepicker").timepicker('setTime',scheduled_time );
<div class="reshedule_meeting" data-id="<?php echo $data['id'];?>" scheduled_with=<?php echo $data['scheduled_with']; ?> scheduled_date=<?php echo $scheduled_date; ?> scheduled_time=<?php echo $data['scheduled_time']; ?> ><a>Reshedule</a></div>
var scheduled_date = jQuery(this).attr('scheduled_date');
var scheduled_time = jQuery(this).attr('scheduled_time');
jQuery("#datepicker").datepicker('setDate',scheduled_date );
jQuery("#timepicker").timepicker('setTime',scheduled_time );