Soak the black chickpeas overnight or for at least six hours before cooking them. This will help to cook them faster and evenly.
1 cup dry black chana
Cook the black chickpeas in an Instant pot for 30 minutes on high pressure with 2 ½ cups of water. You can also cook them on the stovetop in a pressure cooker or saucepan for about 45 minutes to an hour.
Once the black chickpeas are cooked, drain the water and let them cool down.
In a large bowl, mix together all the chaat ingredients - cooked black chickpeas, chopped onions, tomatoes, cucumbers, mint leaves, cilantro, and spices.
½ cup chopped cucumber, 1 tomato chopped, ½ cup chopped onions, 1 tablespoon chopped mint leaves, ½ teaspoon chaat masala powder, ½ teaspoon chili powder (medium spicy), ¼ teaspoon amchur powder, ¼ teaspoon roasted cumin powder (if you desired), 1 tablespoon cilantro chopped
Add the sliced or cubed avocados, lemon juice, and pink or black salt. Mix everything.
2 avocados cubed, 2 teaspoon lemon juice, ¾ teaspoon black salt or pink salt
Serve the Kala chana chaat immediately, or store it in the fridge for later.