Heat oil in a pan and add puffed rice, salt, turmeric powder and mix well.
Now transfer the roasted puffed rice to a bowl. Add boiled potatoes, chopped tomatoes and onions, green chilli, green chutney, tamarind chutney, sev, chaat masala, red chilli powder, garam masala, crushed papdi, lemon juice, mix well.
Now put papdi in a serving bowl and pour the mixture over it.