DLF Magnolias: My investment gut check.

Working in real estate for years, I'm now looking at DLF Magnolias for my own investment. Prices are ₹42 Cr+, but what's the real ROI? What actual rental yield are owners getting? Has capital appreciation peaked, or is there more upside? How liquid is the resale market for these ultra-luxury units? Off-the-record insights appreciated.