I am from Bihar and I want to become police officer and for that I ant to get the details of police ranks in Bihar so can you provide me that as it is very urgent for me?

As you want to get the details of police ranks in Bihar so here is the information of the same for you:

Ranks of Gazetted Officers:-

Director Intelligence Bureau (post held by senior most Indian Police Service officer; not a rank)

Commissioner of Police (State) or Director General of Police

Special Commissioner of Police or Additional Director General of Police

Joint Commissioner of Police or Inspector General of Police

Additional Commissioner of Police or Deputy Inspector General of Police

Deputy Commissioner of Police or Senior Superintendent of Police

Deputy Commissioner of Police or Superintendent of Police

Additional Deputy Commissioner of Police or Additional Superintendent of Police

Assistant Commissioner of Police or Deputy Superintendent of Police

Assistant Superintendent of Police (IPS Probationary Rank: 2 years of service)

Assistant Superintendent of Police (IPS Probationary Rank: 1 year of service)

Ranks of Non-Gazetted Officers:-

Inspector of Police

Sub-Inspector of Police

Assistant Sub-Inspector of Police

Police Head Constable

Senior Police Constable

Police Constable