Crystalline forms of Nilotinib hydrobromide, succinate, glutamate, acetate, L-malate and maleate acid addition salts, polymorphs thereof and a process for the preparation of Nilotinib hydrochloride and Nilotinib base from any one of these saltsニロチニブ塩及びそれらの結晶性形態を調製し、特徴付けた。