advance tax

In the case of a person who has been already assessed by way of regular assessment in respect of the total income of any previous year ⁵⁹[***], the Assessing Officer, if he is of opinion that such person is liable to pay advance tax, may, at any time during the financial year but not later than the last day of February, by order in writing, require such person to pay advance tax calculated in the manner laid down in section 209, and issue to such person a notice of demand under section 156 specifying the instalment or instalments in which such tax is to be paid.