Sohna Sector 1B: Payment plans and real area checks?

₹1.8 Cr for a 3BHK in Sohna's Sector 1B, Vatsalaya project. I'm based in Dubai, can't do site visits myself, so really relying on you guys for ground truth. Builder is pushing a construction-linked payment plan. Is this actually smarter than a lump sum down payment for an investor like me, ya fir there's a catch? Matlab, what's the real advantage? Also, what's the scene with super area vs carpet area? Heard builders inflate numbers, especially for NRIs who can't verify onsite. Kaise check karein ki they're not playing games? Any specific areas in Sohna where you think there's still value for some price correction? DMIC aur Global City ke paas ka kya scene hai? Power of attorney se sab manage karna padega, so need clarity. Thanks!