Gurugram builders: Kitna negotiation possible hai?

Okay I'll be honest — I completely underestimated this process. Even working in real estate, buying for myself in Gurugram feels different. With builders like M3M on Golf Course Extension Road, kitna discount expect kar sakte hain? Log bolte hain 5-10% possible hai, but I'm not seeing it. Pre-launch deals ka hype real hai ya just marketing? Is early-bird pricing actually a discount? What's your real experience with negotiation tactics?