80C deduction not claimed

A taxpayer mistakenly omitted their 80C deduction when revising their Income Tax Return (ITR) for AY 2021-22. This error resulted in the return being processed with a tax demand. The discussion explores potential remedies, including filing a rectification under Section 154 of the Income Tax Act, though success isn't guaranteed. Contacting the Jurisdictional Assessing Officer (AO) is also suggested as an alternative. Filing an updated return is mentioned as a possibility if the system allows it, as the deadline for another revision has passed.