Make a hole at the center of the puris with your thumb.

Stuff each puris with 1/2 tsp potatoes.

In a cup of curd, add a pinch of salt and sugar and mix it well.

Add the curd into each puris. (As per your requirements)

Add chopped onions. Add chopped tomatoes.

Add green chutney and red chilli garlic chutney.

Sprinkle chaat masala and black salt or regular salt. Add good amount of sev

Finally, garnish with coriander leaves. Serve immediately.