Bake cake as mentioned here. Cool it completely, use a serrated knife to slice the dommed top off.
Take cream, icing sugar and vanilla in a bowl and whip this stiff peak is formed. Chill till needed.
Take orange juice, sugar, gelatin, orange food colour and mix well. Take cornflour in a bowl, add some water to it and mix well till disolved. Pour this in the orange juice and mix well. Heat this for 5 mins till it is melted. Set aside till cools down.
Now cut fruits for decoration. And also chop fruits into small pieces, take it in a bowl and add sugar and mix well. Set aside.
Now mix the ingredients for sugar syrup. Set side.
Now take the vanilla cake, soak it with syrup, top with cream and fruits. top with chocolate cake, soak with syrup, spread cream and fruits. Top with vanilla cake and soak it with syrup. Cover completely with cream.
Pour orange sauce over it. Decorate it with fruits