Real estate tycoon Niranjan Hiranandani is facing legal trouble from his daughter Priya Hiranandani-Vandrevala, who sought arbitration in London in 2009, claiming that her father and brother Darshan violated a 2006 family agreement.
Take context from the input text and decide on the accurate relationship between 'daughter' and 'London' from the options provided.
Options: legal form, distributed by, manufacturer, location of formation