Review petition or MA by AO

An AO raised query in ITKP that he has been directed by his Pr. CIT to file reveiw petiton before ITAT in a case which has been decided by ITAT, how to file review petition ?

Review petition or MA is filed before ITAT u/s 254(2) if there is some mistatke of facts or law in the order of ITAT and it is filed on a plain paper addressed to the Registrar ITAT narrating the facts of case and grounds for filing MA. Generally ITAT cannot review its order as it has not power to review its own order but can rectify mistakes if it is apparant from record.