Ghaziabad mein total acquisition cost kitni upar jaati hai?

Surya Nagar mein Amaatra Group ka ek project pasand aaya hai. ₹78L quote kar rahe 3BHK ke liye. But I'm scared about hidden charges, like PLC or maintenance, jo baad mein add hote hain. Kya negotiation bhi possible hai in projects? Investors kitna discount expect kar sakte hain?