Hidden costs buyers only discover after possession in Noida?

Spent the whole weekend looking at completed projects in Noida. I'm so fed up of renting, landlord raised the rent again, so I'm finally taking the plunge. Rudra Buildwell Jagdambe Apartments caught my eye; it's ready-to-move, which feels safer than under-construction uncertainty. My biggest worry isn't just the advertised price (around 76L-1.10Cr). What's the *real* total cost of ownership? Beyond stamp duty and registration, how much do PLC, interiors, and maintenance add up to? Is the RWA there active and well-managed? Sometimes ghost societies are a worry in older projects. For 5-year appreciation, is Jagdambe Apartments a solid investment? Or would it be tough to resell or get good rental income later? Any current residents or past owners have honest opinions on its pros and cons?