Preheat oven to 200°C (392°F) for 10 minutes.

Line a loaf pan with parchment paper.

In a mixing bowl, combine all-purpose flour, whole wheat flour, muesli, instant oats, baking powder, cinnamon powder, dry ginger powder, and salt.

Mix the dry ingredients well.

Add egg whites, olive oil, and vanilla extract to the dry ingredients.

Add grated pumpkin, spice powders, jaggery, and milk.

Mix until a thick batter forms.

Pour the batter into the prepared loaf pan.

Spread the batter evenly in the pan.

Bake in the preheated oven for 45 minutes.

Insert a knife to check for doneness; if it comes out clean, the bread is cooked.

Serve as a tea time snack.