Prestige City: RERA aur title clarity?

Visited Prestige City, Sarjapur Road. Looking at a 3BHK for investment, budget around ₹1.3 Cr. Builder Prestige Group ka reputation toh accha hai. Sab bolte hain RERA check karo, but website pe sirf number dikhta hai. Kya aur red flags hain? Title verification mein log kya miss karte hain? Exit options ke liye kitna important hai sab clear hona?