Greater Noida investors: How long to hold for best returns?

Greater Noida's appreciation curve feels like it's changing, not sure if holding for 5-7 years still makes sense. I'm currently in a 2BHK in Sector 137, bought at ₹75L. Family is growing, so thinking of upgrading to a 3BHK in Sector 150 or a villa near Yamuna Expressway, maybe a Godrej or ATS project. The price jump is massive, ₹1.5Cr plus, and I already have a home loan. Matlab, is it worth locking up so much capital for another 5-7 years, ya phir jaldi exit karna better hai? What's the sweet spot for holding property here for good appreciation?