Moved to Sector 61, feeling blindsided by hidden costs

Possession was finally in March, but the real costs are just starting to hit. We bought a 3BHK in Sector 61 last year, thought we budgeted well for the 1.8 Cr price tag. But yaar, the 'hidden' charges after moving in are insane. Broker didn't mention the absurd RWA setup fee, and the maintenance is way higher than what was promised – it's like ₹8000 a month for basic stuff. Plus, the DG backup charges feel like a separate EMI. Honestly, not sure if this is normal for Gurgaon or if we got swindled. Did anyone else face this in Sector 61? What did you do about it?