Combine the soaked Channa with salt and turmeric in a pressure cooker and cook for 3-4 whistles until soft.The Chana should be soft and firm to touch and should not be either hard or mushy. Set it aside to cool.
Once cool, drain and save the stock to make Rasam or soups.
In a mixer grind ginger, chillies and grated coconut to a coarse paste
Heat oil in a kadai and crackle mustard seeds .Later add hing, curry leaves ,red chilli and the grinded masala and saute for 1 to 2 minutes.
Add the cooked Channa to the kadai add little salt and mix well.
Once everything is well mixed,sprinkle little water ,close the lid and leave it for 2-3 minutes in a low flame, so that channa absorbs all the masala well .
Switch off the flame.Add lemon juice and coriander leaves and mix well.
Chickpeas sundal is ready. Serve them hot,warm or cold as a snack or as prasadam .