 Karkare, a 1982 batch IPS officer, had returned to his state cadre after a seven-year tenure with the Research and Analysis Wing, India's external intelligence agency, in Austria.On 25 January 2009, after receiving a tip-off, ATS agents chased a Maruti 800 car bearing a 'UP' number-plate in Noida.During the chase, the terrorists shot at the police officers who retaliated, causing the car to hit the rear tyre of the suspects' car, veering it off the road.