In a large bowl, whisk together the whole wheat flour, salt, semolina, and carom seeds.
Mix in the oil and stir until it becomes crumbly.
Add water, a tablespoon at a time, until a dough forms then set aside to rest for 15-minutes.
After 15-minutes, take small portions of the dough, and roll into small discs around 1 ½" in diameter.
Make indents on the rolled dough using a fork. This will keep the dough from puffing up too much while frying.
Heat at least 1" oil in a saucepan until 350°F.
Drop the dough rounds into the hot oil making sure not to crowd the pan, and fry until golden brown. Usually, less than 2 minutes per round is needed. Repeat until all dough is fried.
Remove from the oil and drain on paper towels.
How to Make Chutney's
In a small bowl, combine the mint leaves, coriander leaves, salt, green chilis and tamarind paste. Stir until well combined then set aside.
In a separate small bowl, mix together the mango, jaggery (sugar), and salt then set aside.
How to Assemble Papdi Chaat
In a bowl or plate, place a layer of papadis (fried disc) on the bottom.
Top with potatoes and chickpeas.
Then pour over curd or yogurt.
Add both chutneys, a bit of the roasted spices, and a few mint leaves and onion on top.
Notes
Lightly roasting the spice blends before sprinkling over the top of the papdi chaat brings out a richer flavor.