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Case law › Section 251

Section 251

Authorities that bear on section 251 of the Income-tax Act, 1961. Each one tells you what it decided and what to do if it applies to you.

The Income-tax Act, 1961 was repealed on 1 April 2026. It still governs income earned up to 31 March 2026, and every proceeding about those years however late — assessment, reassessment, rectification, penalty, revision and appeal alike. Income earned from 1 April 2026 is governed by the Income-tax Act, 2025. What changed, and which Act governs your year →

Section 251 — the law in short

What the courts have decided on section 251, in one screen. Read this first; open an entry when you need the facts, the reasoning and the source.

Listed strongest first: Supreme Court, then High Court, then Tribunal, then CBDT. Nothing here has yet been read in full by a chartered accountant — open an entry to see where it came from.

Section 251 — 22 entries

Worked examples

Notice situations in which section 251 does the work, taken from the first line to the last. Each step carries the authority that licenses it.
The first appellate authority took your papers, then proposed an enhancement Can the CIT(A) admit my additional evidence and still enhance the assessment on something the AO never examined? 7 steps · 25 authorities · s.250, s.251

Explained in this library

What section 251 does, in plain English, before you read what the courts made of it.

Can you withdraw an appeal once it is filed before the CIT(A)?

Having filed an appeal to the CIT(A), can I withdraw it - for example to take a settlement or amnesty route?

Enhancement by the CIT(A), and where it stops

Can the CIT(A) increase my assessment, and can he tax something the Assessing Officer never looked at?

Rule 27: defending the order you won on grounds you lost

The CIT(A) allowed my appeal but rejected two of my grounds; the Revenue has appealed. Must I file a cross-objection?

Rule 46A: getting new evidence in, and the remand report you cannot skip

How do I get evidence before the CIT(A) that I never filed with the Assessing Officer?

Taking a point for the first time before the Tribunal

I never raised the defective penalty notice below. Can I raise it for the first time before the Tribunal?

The appeal ladder and where facts stop

Where do I appeal an assessment order, how long do I have, and how far can I take it?

The CIT(A) cannot just dismiss your appeal - he has to decide it

Can the CIT(A) dismiss my appeal because I did not appear or did not respond to notices?

What the CIT(A) has already decided, the Commissioner cannot revise

My assessment went to the CIT(A) on two issues. Can the Commissioner still revise it under s.263 on a third?

What the CIT(A)'s enhancement notice has to say

The CIT(A) has issued an enhancement notice that says almost nothing. Must it set out what he proposes to add and how it is worked out?

When the matter goes back: the Tribunal's power to remand, and the clock that then starts

The Tribunal has restored my case to the Assessing Officer. What is the officer allowed to do now, and how long does he have?