(i)the loss so computed for the previous year relevant to the assessment year commencing on the 1st day of April, 2012, to the extent, if any, such loss has not been set off against the agricultural income for the previous year relevant to the assessment year commencing on the 1st day of April, 2013 or the 1st day of April, 2014 or the 1st day of April, 2015 or the 1st day of April, 2016 or the 1st day of April, 2017 or the 1st day of April, 2018 or the 1st day of April, 2019,