kala chana salad ( black chickpeas salad )

1cup kala chana/bengal gram/black chickpeas
1/2 chopped onion
1/2 chopped tomato
1tbsp finely chopped raw green mango
1tsp lemon juice
1tsp red chilli pwd
1 finely chopped green chilli
salt to taste
finely chopped corriander leaves
chaat masala
method :
wash & soak chana overnight . pressure cook till soft or tender .add all the above ingredients and mix well.garnish with corriander leaves,sprinkle some chaat masala and serve .