Sattva Lake Ridge dekh ke aaya, ab legal doubts hain

₹1.8 Cr ki property dekh raha hoon Kondapur mein, Salarpuria Sattva Lake Ridge ka project pasand aaya. Par builder ka legal track record kaise check karte hain? RERA compliance ke liye sirf registration number dekhna enough hai kya? Honest opinion, agar builder ka background sahi nahi nikla toh meri investment phas jayegi. RERA complaints kitne effective hote hain? People say paper pe achha hai but real mein kuch hota nahi. Is it true for Hyderabad? Any red flags to watch out for?