My 3BHK upgrade cost in New Chandigarh is mind-boggling

Is the quoted 3BHK price in New Chandigarh even real? Manohar Singh and Company showed me a ₹1.2 Cr villa, but the stamp duty and registration alone added almost ₹10L. Plus PLC, parking... it's like a 15% hidden cost. For an investor upgrading from a 2BHK in Sector 44, how do you manage this all-in cost jump?