Why do you say it serves no purposes? A gang of top Indian players are out there and spending a few days playing some doubles and (maybe) picking up something from each other in terms of techniques or tips to improve their games. Better than their going and sitting in India, watching Bollywood movies and eating vada-sambar. Why should we criticize if those players are all interested in going and doing it? It serves whatever purpose they all have. As long as our taxpayer money is not spent on it, I won't complain. If that were the case, there were certainly better things to do with Govt money in tennis.
Yes, Sania has had an academy in Hyderabad for quite some time, and the Dubai place is new - as she lives there, and not Hyderabad. A smaller place in center Hyderabad and a larger place with some 12 courts at Murthuzaguda in the outskirts. Imran Mirza runs it. Not sure who the coaches are. Imran himself was doing some, I believe.
The Hyderabad region (Telangana and AP) are producing a good number of decent tennis players in the juniors these days too. More than what we see from say Kolkata and Bengaluru (I think). I don't think Sania is directly responsible for any of that. Maybe some players do get indirectly motivated by her, still.
You are just too negative these days .... But then again, seeing where we are in tennis now, I can't blame you either!