Pressure cook the potatoes for 2 whistles and peel the skin.
Cut the potatoes into cubes and pan fry in 2 tbsp of oil. Add more oil if you are not using a nonstick pan.
Do not over mix, as the potatoes will break apart. Saute the potatoes till they turn golden brown from all the sides. Transfer the fried potatoes into a bowl .
Add finely chopped onions. (Optional) Also add chili powder, roasted cumin powder, chaat masala and salt.
Additionally add green chutney and sweet tamarind chutney / imli-chutney. Mix gently without breaking the aloo / potato pieces.
Transfer the chaat into a serving plate.
Top with a generous amount of sev and also spread a tsp of curd and coriander leaves.