For cake
Mix all purpose flour, sugar, cocoa powder, baking powder, baking soda in a mixer grinder
In one bowl mix all the ingredients that is oil, milk and curd well then add the above mixture firmly
Place in a pot and bake it at 180 degree in a preheated over for 30 to 40 min
For chocolate mousse
Melt the dark chocolate and butter using double boiler
After the dark chocolate is melt let it cooldown
Whip the whipped cream using beater
Add the dark chocolate mixture to the whipped cream
Placing
Place the cake at the bottom of the container
Then pour the chocolate mousse mixture on top of it
Keep in refrigerator for 4 to 5 hours
When set take it out of the container and decorate as u like
Please note the cake container must be as of cheese cake