Wash the potatoes and soak in enough water mixed with little salt. Let it sit for about 10 minutes.
After 10 minutes of soaking in salt water, rub the potatoes to get rid of any dirt, discard the water used for soaking and rinse the potatoes again in fresh water until clean.
Slice the potatoes in medium sized pieces evenly.
Transfer the sliced potatoes to a large bowl.
Add the salt, garlic powder and oil to the potatoes in the bowl, mix everything well with hands to combine all ingredients well.
Add the remaining spices to the bowl - turmeric powder, red chili powder and curry powder and mix all ingredients again to coat with the sliced potatoes.
Let the potatoes sit there for about 15 minutes to marinate.
Preheat the oven to 400 degree Fahrenheit.
After 15 minutes of marination, line a baking sheet with aluminium foil or nonstick silicon mat and transfer the potatoes to the lined baking sheet in a single layer.
It is important not to overcrowd the baking sheet, if there are more potatoes to be baked, you can always do in multiple batches.
Bake for 40 minutes or until the potatoes appears golden brown. You may gently flip the potatoes (after about 35 minutes of baking) using a spatula and bake the other side for about 5 to 10 minutes if needed. Serve hot with rice, quinoa or bread or enjoy it as a snack!