Off topic - So I was really curious to know why many south indian people add prefix/suffix as "Sai" to their name and this is the answer I found on quora š
The āSaiā word in Telugu names generally refers to āShirdi Sai Babaā. The worship of Sai Baba has grown tremendously over the past few decades in Telugu states and hence this usage.
However, it should be noted that there would not be anyone with the name just as āSaiā. Generally āSaiā is prefixed to another word and that combinedly would be that personās āgiven nameā. For example, you have āSai Karthikā, āSai Srinivasā, āSai Pallaviā etc. I have seen some North Indians address people with the above names as āSaiā which would be odd to native people as those people are generally addressed with their full name.
No wonder SKR prefers to be called as Ketan since that's his real name but mostly people call him Sai only š