Upgrading to Elevate: Is this the right investment?

Honestly, I'm a bit overwhelmed by the prices for 3BHKs in Gurgaon. Currently in a 2BHK in Sector 57, I'm thinking of upgrading to Conscient Hines Elevate. Their 3BHKs start around ₹4.85 Cr. Is this price jump worth it from an investor's perspective? I already have a home loan. Kya real rental yield expect kar sakte hain yahan? Also, for such a premium project, kitna liquid hai resale market? Don't want to get stuck with low demand later. Has anyone tracked its capital appreciation since completion?