I love chhole, and this dry one is among my favourites.  Since my daughter prefers this one, and my son 
this one, I alternate between the two.  'Pindi chhole' as the name indicates is a native of Rawalpindi in Pakistan.  The punch in this recipe is due to the use of roasted and powdered 'anardana' (Dried pomegranate seeds), and 'jeera' (Cumin seeds).  The anardana add a tinge of sweetness along with the much loved 'khathai' or slight sourness, and I prefer this to the use of amchoor (Dried mango powder).  The other difference is that pindi chhole has a dark, almost blackish colour due to the addition of a tea bag while cooking the chickpeas or garbanzo beans.  It also adds a subtle flavour to the chhole.