This is a sweet & Sour Sauce to eat with Pakoras, Sandwich, Papri, GolGappe, Tikki and other chatpata Stuff.
This sauce (chatni) can easily be substituted for
Tamarind (Imli chatni) without affecting teh dish's taste much. I would say they both taste almost same except that tamarind sauce is a bit more sour than Amchoor chatni. Read
Amchoor Sauce (Sauth) Chatni recipe.
Enjoy!!