Welcom decision to show income sources

Let's welcome the new government's decision to ask for source for buying new land and building in Kathmandu. I think it is great. Now, no political leaders, smuggers and kidnappers will buy land in our city. Still, I cannot undersnad why only 50 lack and 25 lakh? It should be made mandatory for all. If not, the same smuggler will buy two patches of land in two area with the same money. Let's make a campaign that income source should be shown on every land purchase.