Maintenance charges in Gurugram are a black hole for investors

Maintenance charges in Gurugram are a black hole for investors. I'm looking at Ganga Valley for a potential investment property. Honestly, my biggest concern is ki builder bolte kuch hain aur baad mein bill kuch aur aata hai. Is it just me or do maintenance charges usually keep increasing significantly after possession? And for amenities like green areas, do they actually maintain them well, ya bas initial few years tak hi dikhta hai? My parents keep saying ki these things eat into your ROI, especially if you're not living there. How much do these charges really impact tenant attraction and resale value? Any tips on what to look for in the builder-buyer agreement regarding this? Hope someone has some real-world experience to share.