dried white chickpeas (safed chana or chole) • salt • water for pressure cooking • or two of baking soda - optional • other ingredients for chana masala gravy: • oil or ghee • red chilli powder (lal mirch powder) • coriander powder(dhania powder • asafoetida (hing) - optional • dry mango powder (amchur powder) • water to be added later • salt as required •