Hidden charges: Gurgaon builders ka biggest fraud?

Dwarka Expressway projects... I'm realizing builders often add *so many* charges at possession. Like, IDC/EDC and maintenance deposits for M3M or Emaar. Is that true for Godrej or DLF too? Also, Signature Global ki construction quality, especially finishing, after possession? Yaar, how to avoid these surprises? Hope this helps someone think twice.