Ready possession is everything, under construction is a trap

Since last year, I'm trying to decide between Antara Noida and Realtyvision 4th Avenue. I'm based in Dubai, so site visits are tough. Antara is ready, right? Kya Antara mein society formation sahi se hua hai? Realtyvision is cheaper, but I'm worried about possession delays. Is it worth the risk for the lower price? Need a property manager too, so rental potential matters. Has anyone rented out in either place? Which one has better ROI, especially considering I can't easily oversee things?