First grind biscuits and make thin powder mix milk,sugar,butter and eno then bake in a cooker for 30 to 35 mins.

Then melt both chocolate slab and add whip cream in it

Cut the cake in three equal parts than add melted chocolate after freezing it for 5 mins apply on all sides of cake and in between then add on upside sprinkle some sprinklers and Oreo biscuits and garnish...