How to get back lost "blogroll" or Link List after upgrading from old classic template to New Blogger template

Before I even start discussing topic in title, my advice is save a copy of your old classic template before you do anything like upgrading to New Blogger template. Yes, I know, Blogger said they will save a copy for you, but in order to get that old classic template after upgrading, you have to revert to old classic template from your now New Blogger template, which means if you do not follow the