First of all mix baking soda, baking powder in to the curd mix well let it rest.
Now take another bowl add maida,oil ,suger, cocoa powder and mix well.
Now add some milk it to the maida mixture mix well.
Now add curd mixture into the maida mixture and mix very well and make smooth batter.
Take microwave safe bowl and grease with oil.
Then add cake batter into the mould.
And put the mould in preheated microwave and bake 4min on combination mode.
After bake left the cake on wire rack for cool.
Now add amul cream in a pan boil on gas till boiled the cream then switch off the flame.
Then add butter and dark chocolate in to the cream mix it till become chocolate melted.
Now cut the cake in two part.
And spred both cake part with chocolate ganache.
Put the cake into the freezer for 5min.
Now take butter in to the bowl beat with electric wisker for 1,2min now add suger, vanilla aesens now beat again become puffy.
Fill butter cream in piping bag with lining nozzle.
Make Rose with butter cream and put on cake and make cake corner with butter cream.
Make design with Melted white chocolate as you like and set on cake as you like.
Mix green colour in some white chocolate and make with leaf and set on rose side.
Put cheery on rose and ready chocolate ganache cake with butter cream.