Sector 157 Investment: Good ROI?

I'm considering investing in Sector 157, Noida. What do you think about the future development plans there? Has anyone experienced good appreciation in that area? Also, I've heard about Contour Buildcon Pvt Ltd. Are they a reliable builder for investment? Kya aap logon ko pata hai about their projects' ROI? Which one is better, ready-to-move or under-construction in Sector 157 for long-term gains? Mujhe advice chahiye!