The real ROI question in Noida Extension's rental hub

Has the 'High Rental Yield' corridor in Noida Extension already peaked for investment? We just sold our big house; kids are out, so I'm looking for a manageable 2BHK, around 75-80L. My main idea was to buy something for potential rental income, which led me to this specific zone. But I'm honestly questioning if it’s still undervalued. Prices seem quite high now, and I'm not sure if the rental returns truly justify the outlay anymore. Has the sweet spot passed? I need a good society, low maintenance, and close hospital access, obviously. Should I stick to this corridor or explore other sectors like 16C or Sector 1 for better ROI and value? Any recent experiences with rental yields in these areas?