Noida investment: Stark Developer vs. others? Sector 127?

Guys, I'm looking to invest in Noida. What's your take on the current market? Buyer's or seller's market right now? I'm confused about which area is giving better ROI. Sector 127 seems promising. Kya aap logon ko pata hai Stark Developer kaisa hai? Their projects look good, but mujhe advice chahiye. Has anyone experienced their construction quality? Also, what about rental yield potential in that area? Is it worth investing in under-construction vs. ready-to-move? Which one is better for long-term gains? Any suggestions? I'm really confused. Not sure if I should invest now or wait. What do you think?