Hyderabad home buying: the real costs beyond the brochure

Base price is just a number, the real all-in cost is so confusing. Fed up of renting, my landlord just hiked rent again. I'm finally looking for a 3BHK, maybe Salarpuria Sattva in Attapur, budget around ₹1.2Cr. Builder brochures show one price, but then there's stamp duty, registration, PLC, parking, interiors. Kitna extra lagta hai on top of the base price? Aur yeh "spot discount" jo builders offer karte hain, woh real hota hai ya sirf price adjust karte hain? What's the final EMI vs rent math after all these charges? Any hidden costs I should know about?