Badle Ki Aag is an action dacoit drama. The movie revolves around three men, named Lakhan (Sunil Dutt), Amar Verma (Jeetendra), and Sher Singh (Dharmendra). Lakhan and Sher Singh are dacoits, while Amar Verma is an honest and diligent policeman. All three men are in love with the same woman named Geeta (Reena Roy), who is a courtesan, and do everything possible to win her heart. However, Geeta has her own mission to avenge the death of her family and bring justice to them. In the midst of all this tension, will Geeta be able to find some time for love? Who will Geeta finally choose as her lover?