Soak chickpeas overnight.

Next day,boil till tender.

Boil,peel and cube potatoes.

Chop all the vegetables.

Mix together gram flour and water.

Add this mixture to the pan.

Add in colour,tamarind and all the spices.

When it rapidly boils,add in chickpeas and mix.

Add in all the vegetables and mix.

Transfer this mixture in a bowl.

Put a layer of potatoes over it.

Pour yoghurt over it.

Sprinkle chaat masala.

Throw in papri and coriander leaves.

Serve straight away.