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 salts닐로티닙 염 및 이의 결정형을 제조하고, 특징분석하였다.