Pune police bring Siya Goyal to a local court in connection with the murder of businessman Ketan Agarwal. Pavan Khengre The Pune police this week sought permission from a court to conduct a polygraph test, also referred to as a lie-detection test, on Siya Goyal, who has been booked for the murder of her fiancé, Pune-based realtor Ketan Agarwal. Police have also sought to conduct the test on Goyal’s co-accused, Chetan Chaudhary.