Sahibzada Ajit Singh Nagar District has been carved out of areas falling in Ropar and Patiala district as 18th District of Punjab on 14th April 2006. The district includes Mohali, Kharar and Derabassi Teshils. The District includes total of 20 Police Stations, 9 PPs and 2 CIA i.e. Kharar & Mubarkpur Derabassi. It is divided into 5 sub divisions i.e City 1, City 2, Kharar 1, Kharar 2 & Derabassi.
Besides Law & Order Police Stations its has Cyber Crime, Forensic Science Laboratory, State Crime Police Station, Vigilance Bureau, Intelligence Office, Special Task Force, NRI, Women Cell & Traffic Police Stations.