Preheat the oven to 180 degrees for 10 minutes. In a mixing bowl, add suji. Then add powdered palm sugar/cane sugar.
Now add curd/yogurt followed by milk.
Then add oil. Stir it well with a hand whisk until the oil is mixed evenly. Set this mixture aside for 20 minutes.
After 20 minutes, add vanilla essence.
Now add baking soda and baking powder.
Mix everything well for 10-15 seconds. The final mixture should be in pouring consistency. Adjust with 1-2 tbsp of milk if the batter is too thick. Add in crushed nuts at this stage. Give a quick stir.
Line up the muffin tray with muffin liners. Pour the prepared batter into muffin liners and top it with broken walnuts. Bake in the preheated oven for 20- 25 minutes (baking time depends on the size of the muffin tray and oven) at 180° Celsius till s toothpick inserted in the center comes out clean. Allow cooling in the plate for 5 minutes once done.