Kalindi Kunj Road prices are just a scam

Spent last Saturday checking projects near Kalindi Kunj Road. I'm in a 2BHK, planning an upgrade. Builder ne initially quote diya, matlab, phir 15% hidden charges add kar diye. Prices wahan seem crazy high, up 20% in two years. Is this Kalindi Kunj Road premium justified, ya wait karna chahiye? Already have a home loan.