Noida Airport Area: How reliable are possession timelines?

Saw a video about the Noida International Airport and all the new villages getting notified. It's all about property rates and investment potential, which is great. But I'm really wondering about actual delivery timelines for residential projects coming up along the Yamuna Expressway. Sometimes these massive infrastructure projects can cause delays for residential developments nearby. What's been your experience? For those who've invested near similar large-scale infra projects, did builders usually stick to their possession dates? Or were there significant delays?