For Chutney
Soak dried chilies in hot water for about 30 minutes.
Drain the chilies well and add to a blender along with garlic, ginger, chili powder, cumin, and salt.
Blend into a smooth paste adding some water and set aside.
For Potatoes
Boil baby potatoes in water with a little salt until tender but still firm.
Drain and remove skins when cool enough to handle. Halve or cut into cubes potatoes if large.
Heat oil in a pan, add boiled potatoes, chaat masala and garam masala. Mix well and cook on medium-low heat until the outer layer is crisp.
Remove crisped potatoes to a bowl and set aside.
To Finish
In the same pan, heat some oil. Add chopped onions and fry until golden brown.
Stir in 2-3 tablespoons of the prepared garlic chutney and cook briefly.
Add tomato puree, turmeric powder, chili powder, cumin-coriander powder and garam masala. Season with salt. Cook until oil starts to separate.
Add the crispy potatoes and mix gently to coat well with gravy. Cook until potatoes have absorbed flavors.
Garnish with chopped onions and cilantro. Squeeze lime juice over the top.
Serve hot with fried bhungla/pipe fryums (or use fried Khichiya/rice papad). Enjoy!