Revision or rectification of return AY 2019-20

A user is seeking to revise their 2019-20 tax return due to a discrepancy in Demat holdings, which initially showed a long-term capital gain but now indicates a capital loss. They wish to carry forward this loss to the current tax year. The advice given is that revising the previous year's return is generally not possible unless the department issues a notice, in which case filing an ITR under section 119 might be an option, though it's considered risky and potentially costly. The recommendation is to avoid the complications and potential penalties associated with trying to revise the return and to consider forgetting the loss.