Each state and territory has a state police force and its own distinct State Police Service, headed by the Commissioner of Police (State) or Director General of Police (DGP) who is an Indian Police Service officer.
In addition to the state police, major cities have their own police force called Metropolitan Police which is quite similar to other normal police forces except their different rank designations; e.g., DGP is called as Commissioner of Police (State) in a state with Metropolitan Police.