Gaursons Grandeur 2 or Swastik Homes - which is better for family?

Need to decide ASAP, kids' school admission depends on it. I'm looking at Gaursons Hi Tech Grandeur 2 and Swastik AVS Infra Homes in Noida. Grandeur 2 is ready to move, which is a big plus for my wife's peace of mind. But Swastik is cheaper, so I'm thinking about ROI. Everyone glorifies ready possession, but nobody talks about the hidden costs in Grandeur 2. PLC charges and all that, matlab? Is it worth paying extra for something that's already built? Safe for the children is my main concern. Which one has better security features, genuinely? Change my mind. Tell me why Swastik is a bad idea.