in view

                
               <select class="form-control bookingformfeild religion_id mandatory" data-message="Please enter Religion"  id="religion" name="releigion">
				            <option value="">Select Religion</option>
				
						        <option data-identifier="Hindu"  value="1">Hindu</option>
                    <option data-identifier="Christian"  value="2">Christian</option>
				
			        </select>

              <input type="text" id="diocese" placeholder="Diocese">

              <input type="text" id="parish" placeholder="Parish">

in jquery

               $('body').on("change", ".religion_id" , function() { 
			
                        var identifier=$(".religion_id option:selected").attr("data-identifier");
                        $('#diocese').val('');
                        $('#parish').val('');

                        if(identifier=="Christian"){
                              $('#diocese').show();
                              $('#diocese').addClass('mandatory');

                              $('#parish').hide();
                              $('#parish').removeClass('mandatory');                         
                          
                        }
                        else{
                            $('#diocese').hide();
                            $('#diocese').removeClass('mandatory');

                            $('#parish').hide();
                            $('#parish').removeClass('mandatory');

                         
                        }
                 });