Considering 10 lac own on 1Kanal booking price, in next 4 years considering development charges and minimum profits 1K will be 125. By that time 1K cash file/land will also be 125 considering development charges. Total NPV with development charges (21lac) on 4 years period (by Q1-2021) for booking files with own is 85 and cashfile is 68. For 125 selling the profit for booking files will be ~10% per year and for cash files ~16.5% per year which is excellent for cash file buyers even at 52 
