This is the official Website of the "Directorate of Anti Corruption Branch", West Bengal, India
Press Release..

PROCEDURE FOR SUBMITTING COMPLAINTS

As the State Government is to assign cases to ACB, complaints should be submitted to the Secretary, P&AR Deptt., Government of West Bengal, Nabanna, Howrah. However, if any public servant under the administrative control of the State Govt. is demanding bribe for official work, there is a procedure to catch him red handed. For this, SP or any other senior officer in ACB at New Secretariat Building may be approached directly for prompt action.