Negotiating Bengaluru property from Dubai – is it possible?

Budget set, loan approval in hand – now the real game begins. I'm based in Dubai, so site visits are tough. Looking at a 3BHK around Thanisandra periphery, maybe Keya Homes. They quoted ₹1.8 Cr. Does price negotiation even work in Bengaluru? Builder bol rahe hain no-price-drop policy. But I feel there's always some room. How much can one realistically negotiate off the listed price for properties in this range? Also, what about the all-in costs? Stamp duty, registration, PLC, parking – kitna extra lag jaata hai? I'm worried about hidden charges jo baad mein surprise ban jaate hain. Plus, construction-linked payment plans versus a bigger down payment – which one is smarter for an NRI investor? Need to figure out the best payment structure. Any advice on managing the deal remotely, especially with legal clarity for power of attorney?