Since last year in Hyderabad, feeling stuck.

Since last year I've been eyeing properties in Hyderabad, ab finally Sattva Lake Ridge dekh raha hoon. Upcoming project hai, so thoda nervous hoon. My parents keep saying ready-to-move hi lo, but budget mein kuch mil nahi raha. Honestly, price per sqft jo advertise karte hain, final bill mein kitna change hota hai? Builder ka track record kaisa hai for timely delivery and hidden charges? Aur investor ratio kitna rehta hai aise projects mein, ghost society ka darr lagta hai. Any advice for a first-time buyer?