Greater Noida rental yields are mostly fiction, not reality.

Builders advertise 4-5% rental yields, par honestly, Greater Noida mein real picture alag hai. I'm in this business, but khud ke liye buy karte time I see 2-2.5% se zyada milna mushkil hai, especially in sectors like 150 ya Noida Extension. Maintenance charges aur property tax add karo toh net ROI aur kam ho jaata hai. 2BHK or 3BHK, doesn't matter. Am I wrong? Disagree? Tell me why.