Siddharth "Siddhu" Marathe (Aamir Khan) is a Mumbai tapori, a boxing champion. His brother, Jaidev "Jai" (Rajit Kapur), is the accounts manager and right-hand man for Raunak "Ronnie" Singh (Sharat Saxena), a former boxing champion who ostensibly runs a travel agency, but in reality rules the local community by terrorising people and stealing money from innocent merchants. Other than his boxing practice, Siddhu leads a relatively aimless and wanderlust life. In his spare time, he hangs out with friends, occasionally stealing money from rich people. Siddhu is financially dependent on his elder brother Jai, who lives in Raunak Singh's house, but occasionally visits Siddhu and tops up his finances.