​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.

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