in a large kadai heat 2 tbsp oil and splutter 1 tsp mustard, pinch hing and few curry leaves.
add 1 onion, 1 tsp ginger garlic paste and saute well.
further add 2 potatoes, ¼ tsp turmeric, ¼ tsp chilli powder, ¾ tsp salt.
saute for 3 minutes or until the spices are combined well.
add ½ cup water, cover and boil for 6 minutes.
also, add 1 tomato and saute until tomatoes turn soft and mushy.
add in the prepared masala paste and saute for 2 minutes.
further, add 1 capsicum and saute for a minute.
add 1 cup water, ½ tsp salt and adjust consistency.
cover and simmer for 8 minutes or until capsicum soften and oil separates.
add ¼ tsp garam masala and 2 tbsp coriander. mix well.
finally, serve aloo capsicum masala with hot roti.