My last investment gave ROI, now feeling uncertain

Okay I'll be honest — my last investment in Sector 137 gave decent ROI, but I'm feeling uncertain now. Greater Noida mein next 2 years mein maximum appreciation kahan dikh raha hai? Jewar Airport effect kitna hoga? Noida Extension, Sector 71... under-construction mein risk worth it hai kya? Ready-to-move ka premium justify hota hai?