Eventually, all clues point to Vachchani, who confesses that his brother Kapoor killed Razdan in a rage when she spurned his advances. Vachchani confesses that he was just covering for him, because his brother was mentally ill. Kapoor goes on a shooting spree, killing Vachchani in the process. It seems like the mystery has been solved but Shah realizes two things : 1] Kapoor's revolver had already been emptied before he "shot" his brother dead. 2] Vachchani had posted a mysterious letter to his lawyer.