Gangster Vikas Dubey attempted to flee after the car overturned. Police tried to make him surrender, during which he fired at the policemen. He was injured in retaliatory firing by police. He was later rushed to the hospital: SP Kanpur West. 

source https://news.abplive.com/videos/news/india-police-fired-in-self-defense-sp-kanpur-west-over-vikas-dubey-encounter-1282083