There is not enough 'moyan', fat in the dough

Corn mixture is the ingredients under the headline: 'Filling, mix together'

Thank you Swagata, wish you the same.

If the cake has fat in it, the temperature should be 150-160 and if fat less then 180. But of course each oven may differ, so you will have to try it. What does your oven manual say---check on that, i am not very familiar with convection baking.

which cake?

Atta (Wholewheat) Chocolate Cake
Oven temp: 350 F- 180 C

Atta (Whole wheat) 2 cups (400 g)
Sugar 1 ¾ cups (400 g)
Baking powder 1 tsp
Baking soda (meetha soda) 1 tsp
Cocoa 2/3 cup
Oil ½ cup (125 g)
Water ½ cup
Eggs 4
Vanilla essence ½ tsp
2 baking tins 8”-9” round

Method
Grease the tins and dust with atta.
Place the atta, sugar, soda, baking powder, oil and water in a bowl and beat smooth.
Add the eggs and vanilla essence and beat till smooth again.
Divide the mixture into the tins, and bake in the pre-heated oven for 35-40 mins.