Modify the blog

I had create a blog on word press, but now I want to change the title of that blog. Please tell how can I change that?

General Settings — Support — WordPress.com

go on wordpress support

where you can find all answers of your questions

In your admin panel.different theme has the different area~so help yourself.

Use All in one seo plugin, there is an option for your blog’s title and also you can also put one with wordpress default title option