Gurgaon infrastructure: What's the real timeline?

Just reviewed the latest project updates for Sector 61 online. I'm based in Dubai and can't do site inspections myself. Builders like M3M and Emaar often promise imminent completion for things like Dwarka Expressway to justify higher prices. But is the promised timeline for infrastructure projects, especially Global City, really realistic? I'm worried about delays impacting ROI. Are others experiencing this disconnect between marketing and ground reality? It's tough investing from abroad when information feels so opaque.