Originally posted by: Bluegrass
 
Aditya's, at least, 34. Internship doesn't count in employment records to the best of knowledge. And, no one interns years at end at one place. Places give internship so that they can get low-grade jobs done with minimum to no pay. Assuming he finished his journalism degree/masters at 23-24, he's at least 34.
Aru was probably in college when Aditya was getting front-page beats, so he's at least 26-28.
Also, FK looks hundred years younger when he's clean-shaven, so canonically he's not in his early 20s at least.
True, internship technically doesn’t last more than 6 months to a year, but folks who start working before graduating are usually pegged in that intern kind of category. So when quoting how long they've been with an org, it's the total number of years they've been associated with the org that people usually count, hence that assumption. But yeah, 33-34 makes sense for Adi. 
As to Aryan, I'm inclined towards 29, definitely not a day less than 28, because he didn’t look like a teen when the incident with Arvind happened, more like early 20s – especially given that they also mentioned that he was sort of working and Arvind had gone in his place. And the time lapse from Arvind's death to the current seems like 5-6 years max. Also that makes the difference between AryLie around 10 years. 
FK's look from the look trial that they didn’t go with for Aryan gives the mid-twenties kind of a feel. And the current one with the beard and slightly buffed build gives the late twenties kind of look, so I'm inclined to think like 29ish.