Sector 35 social infra: Are builder promises real?

Sector 35 — keeps coming up every time I shortlist something. Been fed up of renting for years, landlord raised rent again, so finally taking the plunge. My big discovery, especially for families, is to really dig into promised social infra. Builders like BPTP and Puri have projects here. It's not just about the 3BHK price, but checking their track record on delivering schools or hospitals *within* or *near* their townships. I'm looking at options around ₹1.2 Cr, wondering if they actually deliver on the 'upcoming' schools or just keep them on paper. Also, how reliable are the existing hospitals like Asian or Metro from Sector 35? Is the commute easy for school drop-offs? This is a huge factor for me. What are your tips for verifying these future amenities? Hope this helps someone else looking beyond just the flat itself.