Who is an Assessing Officer?
​​​​​​He/She is an officer of the Income-tax Department who has been given jurisdiction over a particular geographical area in a city/town or over a class of persons. You can find out from the PRO or from the Departmental website http://www.incometaxindia.gov.in about the officer administering the law which could be based on your geographical jurisdiction or the nature of income earned by you. One can also before section 2(7A) of In​come tax Act.