Section 30. Income escaping assessment

If for any reason any agricultural income chargeable to agricultural income-tax has escaped assessment for any financial year, or has been assessed at too low a rate, the Agricultural Income-tax Officer may, at any time within three years of the end of that financial year, serve on the person liable to pay agricultural income-tax on such agricultural income or, in the case of a company on the principal officer thereof, a notice containing all or any of the requirements which may be included in a notice under sub-section (2) of section 19, and may proceed to assess or reassess such income, and the provisions of this Act shall, so far as may be, apply accordingly as if the notice were a notice issued under that sub-section:

Provided that the tax shall be charged at the rate at which it would have been charged if such income had not escaped assessment or full assessment, as the case may be:

Provided further that when the income, profits or gains concerned are agricultural income, profits or gains liable to assessment for a year ending prior to the commencement of this Act, or where the assessment made or to be made is an assessment made or to be made on a person deemed to be the agent of a non-resident person, this sub-section shall have effect as if for the period of three years a period of one year were substituted.