(12)The amount of income-tax as specified in sub-sections (4) to (10) and as increased by the applicable surcharge, for the purposes of the Union, calculated in the manner provided therein, shall be further increased by an additional surcharge, for the purposes of the Union, to be called the "Health and Education Cess on income-tax", calculated at the rate of four per cent. of such income-tax and surcharge so as to fulfil the commitment of the Government to provide and finance quality health services and universalised quality basic education and secondary and higher education:
