On the facts stated, the error has arisen in the Order Giving Effect (OGE) passed by the Assessing Officer while implementing the appellate order, by granting/adjusting the refund of Rs. 2 lakhs twice. This constitutes a mistake apparent from record within the meaning of Section 154 of the Income-tax Act, 1961, and the rectification must therefore be sought against the order in which the mistake exists, i.e., the OGE.
Accordingly, the correct procedural position is as follows:
First, the rectification application should be filed before the Assessing Officer (AO) and not before the CIT(A), since the appellate order is correctly passed and the error has crept in only at the stage of giving effect.
Second, while selecting the option on the portal, the appropriate choices would be:
- "Rectification Request Filed Before": AO
- "File rectification against": Order u/s 154 / Order Giving Effect (and not the original assessment order u/s 143(3))
The reference to Section 143(3) of the Income-tax Act, 1961 is not relevant at this stage, as the mistake does not pertain to the assessment order but to the consequential order.
Third, with respect to the DIN error while entering details of the OGE, this is a common portal-level issue where:
- either the OGE is not yet fully system-updated, or
- the DIN format is not being accepted due to mismatch (spacing/formatting issues), or
- the order is not selectable under the automated rectification workflow.
In such a case, the practical course of action is:
- attempt filing under "latest order passed by AO" if the OGE is available in the dropdown; or
- if the system still does not permit, file a manual rectification application with the jurisdictional AO, enclosaing:
(i) copy of CIT(A) order,
(ii) copy of OGE,
(iii) working showing duplication of Rs. 2 lakhs, and
(iv) request for correction of pre-deposit/refund adjustment.
Lastly, since the issue is arithmetical and apparent, it squarely falls within Section 154, and no appeal is required. A concise reconciliation statement should be attached to clearly demonstrate the duplication of the Rs. 2 lakhs adjustment.
In sum, proceed against the OGE before AO under Section 154, and if the portal does not permit due to DIN issues, adopt the offline/letter route with supporting computation.