Police PSI Full Form in English PSI stands for Police Sub-Inspector. A Police Sub-Inspector ( PSI ) is a rank used in many police forces across India and some neighboring countries. It is a post above Assistant Sub-Inspector (ASI) and below Inspector. A PSI is usually in charge of a police station in rural areas or a sub-division in urban areas. This officer plays a crucial role in maintaining law and order and supervising investigations. psi full form – Police Sub-Inspector पी एस आय चा फुल फॉर्म पोलीस सब इन्स्पेक्टर असा आहे. psi होण्यासाठी काय करावे लागते पोलीस उपनिरीक्षक पात्रता:- PSI stands for Police Sub Inspector, a rank in the Indian police force. Learn about the benefits, roles, types of jobs, career levels, eligibility, qualifications and salaries of PSI officers. What Does PSI Stand For? psi full form in police stand for Police Sub-Inspector. It is a rank in the police forces of India and many other countries. As the name suggests, a PSI is below the rank of an inspector and is typically responsible for leading a team of police officers.