firstly, in a large kadai heat 2 tbsp oil and saute spices.
now add 1 onion and saute until they turn golden brown.
further, add spice powder and saute on low flame.
add 4 potato, ½ tsp salt and saute on a low flame.
add 2 tbsp water, cover and cook until the aloo is almost cooked.
now add 1 tomato and saute for a minute.
further, add 400 grams brinjal, ¼ tsp salt and mix gently until the spices are combined well.
cover and cook or until brinjal is cooked well.
finally, add coriander and enjoy aloo baingan recipe with roti.