Which is the most important area to include your keywords?

Heading
Content
Title
Description

EMD site ( Exact Matched Domain). In this case you can use keyword in domain itself. So the site name will be DogtrainingcentreinBangalore
PMD (Partial matched domain). You can use "GuptaDogtraining"
You can in page URL
Title
Meta description
Body copy
Schema (rich snippet)
Heading (H1, H2)
First line of web page
Anchor text
footer link
internal link
Alt tag (for image)

These are the following things whereas you have to mention your targeted keywords in your page.
SEO Title
URL
Meta description
1st paragraph in your content
any H2 tag
Image ALT Tag

Your keyword should be the part of your Header,Title,Content and Url. If your keyword is the part of your url so it is very beneficial for you.