Emaar Marbella's appreciation isn't matching the hype.

Budget finalised, loan pre-approved for an upgrade. Currently in a 2BHK, eyeing Emaar Marbella villas. ₹12 Cr+ is a lot. Has anyone tracked its capital appreciation? Matlab, price-trend kaisa raha hai since launch? Also, Mohali mein Emaar ka project delivery track record kaisa hai? Is this total cost justified for long-term investor hold?