After 6 hrs, transfer the soaked chickpeas to the pressure cooker. Add water and salt to it and close the lid.
Pressure cook chickpeas for 6 - 8 whistles or for 20 minutes (high pressure) in an instant pot
Then turn off heat and wait for pressure to release.
Strain out using a colander & remove chana to a large mixing bowl.
Add in chopped onions, tomatoes, cucumber, spring onions, green chillies, coriander leaves.
Season with a pinch of black salt, chat masala and 1 - 2 tbsp lemon juice.
Mix them well and chickpeas salad is ready.
Variation
To make this interesting, you can saute the chickpeas with spices before adding them to the veggies.
For this heat 2 tbsp oil in a pan.
Add a pinch of cumin seeds and let them crackle.
Then add a pinch of thing or asafoetida.
Add chopped onions, and 1 tsp ginger garlic paste, and saute till onion becomes translucent.
Then add chopped tomatoes and saute till it becomes soft.
Now add a pinch of salt (as required), coriander powder, cumin powder, red chili powder, and turmeric powder, and mix them well. Add 3 - 5 tbsp water and cook for a minute.
Then add the boiled chickpeas to the pan and mix everything. Cook for another 2 - 3 minutes till all liquid is soaked up.
Turn off the heat and let it cool down to room temperature before adding other ingredients.
Then repeat the other steps similar to those mentioned above, i.e.mixing the veggies, salt and lemon juice.
Video
Notes
There is an additional time of 6 - 8 hours for soaking the chickpeas.You can store these sauteed chickpeas or boiled chickpeas in an air-tight container for 4 - 5 days in the refrigerator.