Soak black chickpeas overnight. Boil chickpeas with salt and pepper in enough water to cook till it is soft. Remove from heat. Let it cool a bit.
In a bowl, add chickpeas, tomatoes, onion, green chilies, cilantro, lemon juice, cut mango, cucumber, salt, red pepper & chaat masala, mix well & serve.
Yummy !! Enjoyed with my best friend . Thanks