The stars announced their separation on social media in a joint statement last year.
Samantha Ruth Prabhu and Naga Chaitanya, co-stars of films like Manam, Ye Maaya Chesave and Autonagar Surya, got married in 2017.
Nagarjuna checked into Mumbai on Wednesday and he interacted with the media during his visit.
Nagarjuna was asked about son Naga Chaitanya’s divorce with Samantha Ruth Prabhu
Nagarjuna replied: “He is happy, that’s all I see. That’s good enough for me. It’s an experience that happened to him.