Fed up of renting, finally taking the plunge in Bengaluru

Under-construction risk is completely overblown in my opinion, but I'm still nervous. Fed up of renting, looking at Prestige City (ongoing) vs Keya Life (completed). Keya mein total kharcha kitna aata hai after everything? Prestige City ka possession risk worth it hai kya for the lower price? Confused about EMI vs rent math.