First-time buyer: Scared of legal property traps

The legal hurdles in Hyderabad real estate feel insane right now. I'm so fed up of renting in Gachibowli, my landlord just hiked rent, so the EMI vs rent math finally makes sense for buying. My budget is ₹90L-1.2Cr for a 2BHK, eyeing Kokapet or Narsingi. Salarpuria Sattva's Sattva Lake Ridge looked good initially, but I'm paranoid about due diligence. How do you *really* check RERA registration and spot red flags? What are critical title verification steps? I don't want hidden legal issues. Any advice on verifying a builder's legal track record before committing?