(b)has, within two years after that date, purchased any other land for being used for agricultural purposes (new asset),then, instead of the capital gains being charged to income-tax as income of the tax year in which the transfer took place, it shall be dealt with as follows:—(i)if the capital gains exceed the cost of the new asset, such excess shall be charged under section 67, and for computing any capital gains arising from the transfer of the new asset within three years of its purchase, the cost shall be nil; or(ii)if the capital gains is equal to or less than the cost of the new asset, no capital gains shall be charged under section 67, and for computing any capital gains arising from the transfer of the new asset within three years of its purchase, the cost shall be reduced by the amount of the capital gains.