Hidden costs near DLF Promenade are a shocker

Budget finalized for an investment flat near DLF Promenade, but the hidden costs are seriously frustrating. I'm based in Dubai, so site visits mushkil hain. Brokers quote one price, phir pata chala PLC, IDC, EDC, and some weird 'club membership' fees add 15-20% extra. Is this normal for Gurgaon, especially in prime areas like this? How do you guys factor these into your budget? Aur maintenance charges ka kya scene hai? Feeling like I'm getting played, honestly.