What is Dadaji in Gujarati?

Dadaji is already in Gujarati. It's a common term used for grandfather.

However, if you're looking for a more formal or respectful way to say "Dadaji" in Gujarati, you can use "dada" or "dada shree" which are both highly respectful terms.

You could also use "pitaji" (father) or "pitaji shree" (respected father) if you want to emphasize their role as a father figure.