Gurugram rentals: Is this sky-high demand actually sustainable?

Okay I'll be honest — Gurugram ka rental market ab pura pagal ho gaya hai. We're selling our big house since kids have moved out, so we're looking at smaller places, maybe even renting for a bit. But seriously, last two years mein 30-40% rent increase? Yeh toh bilkul justified nahi lagta. A 2BHK on Golf Course Extension Road ya Chakkarpur mein bhi itna high rent, it feels unsustainable. Investors jo property le rahe hain for rental income, are you guys actually making good ROI? Given the property prices here, especially on Dwarka Expressway, 2.5-4.5% rental yield seems so low after EMI and maintenance. Everyone talks capital appreciation but rental income toh itna tight hai. Change my mind, because right now, I don't see the logic.