Gurgaon rent hikes are a bubble waiting to burst

Okay I'll be honest — the Gurgaon rental market is making my head spin. I'm currently in a 2BHK in Sector 7, thinking of upgrading to a 3BHK on Golf Course Ext. Road. I've already got a home loan, so the plan was to rent out my current place. But seeing rents jump 30-40% recently, especially near Cyber City, makes me wonder. Is this even sustainable? With current rental yields around 2.5-4.5%, is holding onto property for rental income still making sense? What do you guys think? Is the rental premium justified, or is it just temporary?