In a blender,put eggs,sugar,refined oil and curd.Blend for 30 seconds.
Now add maida,baking soda,salt,vanilla essence. Blend again for 10 seconds.
Divide it in 4 equal parts.
For yellow portion,Add pineapple chunks,pineapple essence.keep aside.
Mix cocoa powder in 2nd portion
Mix red color in 3rd portion
Add cherries in plain white portion.
Grease the tin with oil.Assemble them by using 1 tsp of each batter dropping in the tin 1 by 1 directly in the centre.
Complete till the batter is done
Bake it in cooker for 55 mins removing gasket and whistle.
Let it cool properly.Then cut into desired pieces.