Pressure cook the chickpeas in enough water for 6-7 whistles. When cool, drain and keep aside. Pressure cook the sprouts (without water) too for 3 whistles. Keep aside.
For the Dressing - Whisk together yoghurt, 1 tbsp. water, lime juice, salt, pepper powder and olive oil.
Just before serving, mix the chickpeas, green chilli and the sprouts along with the dressing. Serve, garnished with coriander leaves.