JSFiddle - React, Tailwind, and code Playground

HTML

<div class="form-group col-md-4">
  <label for="pwd">Start Date</label>
  <input type="date" class="form-control" id='Sdate' name='Sdate'   min=''  value="">
  <div class="alert-danger"><?php echo form_error('Sdate'); ?></div>
</div>
<div class="form-group col-md-4">
  <label for="pwd">End Date</label>
  <input type="date" class="form-control" id='Edate' name='Edate' value="<?php echo set_value('Edate'); ?>">
  <div class="alert-danger"><?php echo form_error('Edate'); ?></div>
</div>

JavaScript

$(document).ready(function(){

	var today = new Date();
	var sdate = today.getFullYear()+'-'+(today.getMonth()+1)+'-'+(today.getDate() < 10 ? '0'+today.getDate() : today.getDate());
	$('#Sdate').prop('min', sdate);

	$('#Sdate').on('change', function(){
  	$('#Edate').prop('min', $(this).val() );
  });

});