need support for checkout page, default state is selected

need support for checkout page, Need to deselect default state. So kindly help me out for this.

Where is the problem ?
purchasing new item ? or purchased item ?

if you need help from Envato Support Team then open a Help TIcket they would like to assist you.
If you need item support then get in touch with your purchase item author from here

Hope they will helped!

while purchasing the new item. default selected state is Delhi.

its is depending on your account registration details or your purchase card details wise best way get in touch with envato support team they would like to assist you.