what is balram and vitiligo lips friendship?

Vitiligo-Lips is one of the other drivers Balram encounters in Delhi. His lips are marked by vitiligo, a skin disease that affects many poor people in India and causes a lightening of skin pigment. Vitiligo-Lips serves as a sort of guide to Balram in Delhi, introducing him to city life, answering his many questions, and giving him access to a variety of illicit products ranging from Murder Weekly magazines to prostitutes. Since most of the other chauffeurs and servants in Delhi mercilessly tease Balram and make him an outcast, Vitiligo-Lips is crucial to Balram's survival.