Pune investors: What hidden charges bite you?

Digambar Nagar — looking at Gruhshilp Construction's projects. Base prices seem decent for a 2BHK around ₹75L. But honestly, I'm trying to figure out the *real* all-in cost. What hidden charges should I absolutely watch out for? PLC, floor rise, I know some... but anything else that pops up near possession? Don't want to get blindsided. Any tips on uncovering those extras?