Greater Noida: 'Premium Builders' corridor, still a smart investment?

₹1.5 Cr for a 3BHK in the 'Premium Builders' corridor – is this the new normal? I'm currently in a 2BHK in Sector Alpha and thinking of upgrading to a bigger 3BHK or even a villa within this area. Already have a home loan, so EMI will be a big factor. Honestly, not sure if 'Premium Builders' is still undervalued or if prices have already peaked. Kya yahan abhi bhi investment ka scope hai for good ROI? Ya phir it's too late? Kon se sectors ya projects mein abhi bhi value mil sakti hai? Any experiences with specific projects ya builders in that belt? Should I consider ready-to-move ya under-construction mein risk lena worth it hai? Looking for real opinions, please.