Stuck between flat or plot for Gurugram investment

Budget finalised, loan pre-approved — now stuck on which sector. I work in real estate, so I know the super area vs carpet area games, but buying for myself is different. I'm torn between a 3BHK flat in Sector 65, around ₹2.5Cr, or a plot near Dwarka Expressway. My goal is capital appreciation, not just rental yield. With Dwarka Expressway nearing completion, plots seem promising, but flats offer quicker possession. What's the real ROI on plots versus flats in Gurugram currently? How long do people hold plots before selling for good gains?