What builders don't tell you about Hyderabad's hidden property costs

Malkajgiri — everyone talks about Gachibowli, but I'm checking options like Salarpuria Sattva. Fed up of renting, finally buying. Trying to figure out the *true* all-in cost beyond just property price. Builders quote base, but what about hidden charges? Like IFMS, electricity meter, or club house fees? Do specific charges pop up only at possession in Hyderabad? How much extra should I budget, maybe a percentage? Don't want last-minute surprises. Any tips to uncover these early? Hope this helps someone.