She was fifteen, lying about her age. The scene required her to be the hero’s weeping sister, dying of tuberculosis. The director yelled, "Cry, Sapna! Cry like your doll is broken!" She couldn't. So he slapped her—off-camera, hard. The tears came. On screen, it became her first notable moment: a single, silent tear tracing a path through cheap powder. Critics called it "raw, untamed grief." Sapna called it humiliation. But it taught her the first rule: pain is a currency. Spend it wisely.