Google’s John Mueller answered a question on Reddit about a site using dual languages, multiple languages in a single title tag for a single page. John said it is preferable to use one language and be clear and consistent with that title tag for that single page.

But John didn’t end there, he said in some languages and regions, like in India, it might make sense to mix the languages a bit. John wrote:

So try to stick with one language but think about the searcher, the end user and see what they like for that specific page.

Forum discussion at Reddit.

Note: This story was pre-written and scheduled to be posted now, I am currently offline for a holiday.