Using an electric mixer, beat cream cheese and sugar until it becomes smooth mixture. Run the mixer at med-speed, add cardamom powder. Gradually add mawa or koya and continue to beat until combined. Finally add whipped cream, chopped almonds and half portion of pistachio, combine well. Pour the prepared Chease-mawa-cream mixture on the cookies base, prepared earlier. Smooth the top and sides with a spatula. Sprinkle the remaining pistachios on top and refrigerate for about 4 hours. Sever chill and celebrate the diwali with Mawa (Koya) Cheese Cake.