Reacting to the impending narco-analysis and polygraph test of Aftab Poonawala in Shraddha Walkar murder probe, his court-appointed defence counsel, Avinash Kumar, said the police are doing their duty as he's doing his. "[Aftab] told me that he will fully cooperate. So, whenever I move for bail, it will be good grounds for me to state the same," Kumar added.