Step-1: go to blogger dashboad / theme / edit html
step-2: code copy kar ke purane wale layout ke upar past kar de
Step-3: edit section name and save html
<b:section class='section_name' id='section_name' showaddelement='yes' maxwidgets=''></b:section>
How to add a gadget section
Go to blogger dashboard click on layout you have got add a new gadget add our code in gadget