Since Aarav seemed to be likely to be a South Asian name, I googled it along with Bollywood, and immediately came up with many references to Aarav, the son of Akshay
Kumar, who is one of the most popular Bollywood actors at the moment.
So this seems to be the first example I'm aware of where a Bollywood "celebrity baby name" may have had an influence. Certainly some kids of Hollywood celebrities, such as
Angelina Jolie's son
Maddox and
Eddie Murphy's daughter Bria, have sparked sudden surges in use of their names before, so it shouldn't be a surprise that people in the South Asian immigrant community can also be affected by similar publicity.