In a small blender add all the ingredients of the Mint Chutney and blend till smooth. Keep aside.
Boil the water and turn off heat. Put the tamarind in it, along with the rest of the ingredients and cover for 15-20 minutes. When the tamarind separates and is soft blend everything together into a smooth chutney. If your tamarind has seeds remove those first before blending.
Mix the yogurt, water and sugar. Keep aside.
In the boiled chickpeas add onion, tomato, mint, cilantro, chaat masala, cumin powder, salt and red chili powder. Mix well and put aside.
Take a big bowl (or individual jars for party serving).
Add some sweetened yogurt sparingly to the bottom of your serving bowl, put the chickpeas mixture, pour some more yogurt, drizzle the mint and imli chutney.
Garnish with diced onions, tomatoes, mint, cilantro and sev (or papri).
Sprinkle some chaat masala and serve immediately.
Video
Notes
An alternative, quicker way of making Imli Chutney is to mix 1 tablespoon imli concentrate with ¼ cup water, 2 teaspoon brown sugar and ½ teaspoon cumin powder.