Section 131(1A) of the Income Tax Act

Section 153C of the Income-tax Act is invoked only when it is established that seized documents do not belong to the searched person, or if the searched person disclaims them; the satisfaction note must specifically indicate this fact.

The Supreme Court holds that circulars issued by the Central Board of Direct Taxes (CBDT) are binding on all officers and persons employed in the execution of the Income-tax Act. These circulars are binding even if they deviate from the provisions of the Act, particularly when issued to relieve hardships.

The Assessing Officer is duty-bound to grant relief to an assessee wherever it is due, even if such relief has not been specifically claimed by the assessee during the assessment proceedings.

Ambiguity in tax statutes and explanations must be resolved in favor of the assessee. Tax Residency Certificates (TRCs) are conclusive proof of residency for treaty benefits unless fraud or treaty shopping is established, validating legitimate holding structures and Special Purpose Vehicles (SPVs).

Once an assessment is validly reopened under Section 147, the Assessing Officer gains jurisdiction to levy tax on the entire income that escaped assessment for that year, not just the income for which the reopening reason was formed. However, the assessee cannot use these proceedings to seek relief or claim new deductions unrelated to the escaped income.

The onus of proving necessary facts to claim a deduction under Section 37(1) rests on the assessee, and if the assessee fails to establish these facts, the claim for deduction is not admissible.

Penalty under Section 271(1)(c) is not automatically imposed upon an assessee's failure to contest a quantum addition or if two views are possible; the Assessing Officer must prove the charge of concealment or inaccurate particulars. Furthermore, an Assessing Officer can disallow a claim during assessment if it is patently false on examination of facts.

Seized documents, particularly those that are unsigned or incomplete ('dumb documents'), cannot be the sole basis for making additions to income in search assessments without independent corroboration or proper inquiry by the Assessing Officer to establish their evidentiary value and link to the assessee.

The first appellate authority, the Commissioner (Appeals), cannot enhance an assessment by considering a new scope or source of income that was not part of the original assessment proceedings. Its power to enhance under Section 251(1)(a) is restricted to what was originally assessed.