Saini Bhawan residents: What hidden recurring costs surprised you?

Okay I'll be honest — I completely underestimated how many hidden costs pop up after moving into Saini Bhawan. Just got possession a few months back. Maintenance charges are higher than I thought, not just the quoted amount. There are these extra charges for generator backup, parking cleaning, and even some society events. Matlab, my EMI ke upar yeh sab add ho jaata hai. Buyers usually only see the property price. Should've factored these into the total cost properly. Any tips to manage these better? Hope this helps someone budget smarter.