Manimajra: What they don't tell you upfront

Visited a couple of Omaxe projects in Manimajra last Saturday. The initial quotes seemed okay, but then they dropped the bomb about maintenance charges – like ₹8000+ for a 3BHK! And other hidden costs, PLC, parking... honestly not sure how all this adds up. My parents warned me, but I had no idea these extras would inflate the actual cost so much. It feels like they hide it until you're serious. Anyone else buying in Manimajra faced these surprise charges? What did you do or how did you negotiate?