Peel carrot and grate it. Heat ghee in a pan add carrot and cover it. Stir in between.When carrot is tender and water is evaported, add sugar. After adding, it will leave water and will require to be dried on maximum heat for about 5 to 10 minutes.When dried, add khoya ghee and dry fruits cook for 5 more minutes. it is more dry than normal halwa.

Heat the grated pumpkin and dry it's water. it will take 5-7 minutes
Add sugar and cook till water dry.
Add khoya and fry for 2-3 minutes
Buy mini gulabjamun from market.here i used kalajam which i make at home recipe is here
Decoration
for top of the cake fry kohya for 3-4 minutes. when cool add powder sugar to it.,

Now assemble the cake.
Take half of the gajjar halwa on the dish make the round shape or any shape u like
Now spread the pumpkin halwa on it.
Cut gulbjamun into 2 pieces
Arrange them on the pumpkin halwa layer.

Now put another half of carrot halwa on top. with hands make it round.
Decorate with khoya sugar mixture.
Garnish with any dry fruit

Set it in the fridge for 30 minutes,
Seve hot........Heat in microwave