RERA effectiveness in Gurgaon is just a myth

My lease ends in 4 months and I still haven't figured this out. Budget set for a 2BHK around ₹1.5 Cr, eyeing Dwarka Expressway. I'm looking at projects like Laburnum Victory Floors 88A. Builder-buyer agreement mein kya red flags hote hain? Honestly, not sure if RERA actually helps when builders delay possession. Is it just on paper? Koi real experience share karo, please. Kya options hote hain agar builder time pe delivery na kare?