Sub Inspector is the abbreviation for SI. So, the full form for SI in Police is Sub Inspector. It is a rank in the Indian police service. SI is a police officer who is in charge of a police station and ranks higher than an Assistant Sub-Inspector (ASI). A SI’s rank insignia consists of two stars and a red and blue striped ribbon at the shoulder straps’ outer end. ‘

A SI is the officer in command of the police station where he or she is assigned, and is also in charge of the station’s administration as well as preserving law and order in his jurisdiction. The duties of a SI are outlined in both Indian police and state legislation.

How do you go about becoming a SI?

  • The State Police Department’s SI procedure is as follows:
  • You should have a bachelor’s degree in any field.
  • In most states, the age limit is 18 to 28, with some exceptions based on category rules.
  • Height 5′ 6′′, chest 79-84 inches, which does not apply to women, as their height is likewise 157cms.
  • You must be in good physical condition.
  • Candidates must have passed the PET and PST after the advertisement is published.
  • 1600 metres run and 20 pushups in 6:30 minutes is the Physical Efficiency Test (PET).
  • Qualified candidates will be invited to take a written test, which will be an OMR-based graduate level exam. The curriculum differs from state to state. Some states require two papers, while others just require one. In maximal states, there is no -ve indication.
  • Candidates are called for a viva after passing the written exam.
  • Candidates should get a medical checkup and have their documents verified after the viva.
  • After that, they join their zonal police headquarters and go to the state police academy for training.


  • S.I’s responsibilities include ensuring the successful working and management of his or her subordinates, as well as maintaining the peace and preventing and detecting crime.
  • To keep track of the records and registrations at the police station under his command.
  • To gather and disseminate information on all issues concerning public welfare.


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