Chaat, or chāt (iast: cāṭ) (lit. 'lick, tasting, delicacy') is a family of savoury snacks that originated in india, typically served as an hors d'oeuvre or at roadside tracks from stalls or food carts across south asia in india, pakistan, nepal and bangladesh. with its origins in uttar pradesh, india, chaat has become immensely popular in the rest of south asia and the caribbean.

Source: Wikipedia