Noida investment sahi hai kya? Sector 74 ya kahi aur?

Yaar, I'm fed up of renting! Thinking of buying in Noida. Sector 74 mein Contour Buildcon Pvt Ltd ka project dekh raha hu. Anyone invested there? Under-construction lena sahi rahega ya ready-to-move better hai? Kya rental yield sach mein milti hai? Mujhe advice chahiye. It's a big decision!