In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: Allan, an American, arrives in Ahmedabad searching for answers, to find internal peace and to understand the world and his troubled life. He chooses India as his school and Gandhi as his subject of his thesis. It is here that he meets the Pithawala family — Cyrus, his wife Shernaz, son Parzan and daughter Dilshad. The Pithawalas being Parsis follow Zoroastrianism. Through them and the teachings of a Gandhian, Allan starts to find peace of mind.
The plot is based on the story of Rupa Mody, whose son went missing after the 2002 Gujarat riots. The ten-year-old Parzan disappears during these riots when their surrounding homes are attacked. Cyrus, Shernaz and Dilshad manage to escape the carnage. In the aftermath of the riots, Cyrus searches for his missing child while fighting for his own sanity. While assisting the Pithawalas in their search, Allan battles to uncover the reason behind the riots in an effort to make some sense of the incident. People start to question government's official explanation of the incident which downplays any conspiracy. As a result, a Human Rights Commission is formed. Through the commission, several witnesses and victims testify against the indifference of the police to protect them from the rioters. The film ends with a dedication to the victims of communal violence.
What is Cyrus' last name?