Remote Delhi property hunt: Delivery and quality concerns

Okay I'll be honest — I completely underestimated how confusing this process is, trying to buy property in Delhi remotely. I'm based in Dubai, looking for a 3BHK in Dwarka or Greater Kailash, budget ₹2.5-3 Cr. Can't do site inspections myself, so community reviews are my only hope. I'm checking out projects by DLF, Godrej Properties, and Tata Housing. Mera main concern delivery track record hai. Are these builders generally on time with possessions, ya fir typical delays expect karun? Also, construction quality ka kya scene hai? After possession, log seepage ya finishing issues ki complaints karte hain. Aur hidden charges, jaise PLC, EDC, registry fees, kitne surprise kar sakte hain? Sunne mein aaya hai ki final bill mein kaafi extra add ho jaata hai. I need to manage this via POA, so transparency is key. Anyone with recent experience?