Mono Ethylene Glycol Reclamation Plant imported for offshore and onshore petroleum operations qualified for customs exemption under Serial No. 404 read with Serial No. 4 of List 33 of Notification No. 50/2017-Customs during the pre-amendment period. Eligibility required the goods to fall within the tariff coverage in the main notification and meet prescribed conditions; List 33's reference to tariff heading 8430 did not independently restrict the wider description of specialised petroleum-service equipment. End-use certification supported this interpretation. A later specific entry for the plant operated prospectively and did not displace coverage under the existing general entry. The ambiguity rule favouring Revenue did not apply because the exemption provision was unambiguous.

Immunity from penalty under Section 270AA is not defeated solely by delayed furnishing of Form No. 68 where the taxpayer has paid the assessed tax and interest and has not appealed the quantum assessment. Filing the prescribed form late is a technical and venial procedural lapse when payment substantially within the relevant period demonstrates an intention to seek immunity. The assessing authority must identify any unfulfilled statutory condition before denying the claim. The immunity application requires reconsideration after giving the taxpayer an opportunity of hearing.

Section 292BC treats approvals in assessment proceedings as administrative and supervisory, preventing invalidation for defects in reasons, form, authentication or communication; absence of DIN and clerical inaccuracies therefore did not invalidate section 153D approval. Excess cash found beyond recorded balances was assessable as unexplained money under section 69A despite an erroneous reference to section 69, because the correction neither changed the income source nor caused prejudice requiring a further hearing. The claimed personal-cash explanation lacked a reliable contemporaneous trail. Stock-shortage addition requires fresh factual examination where work-in-process and normal manufacturing loss are supported by quantitative reconciliation and records.

Extended assessment jurisdiction under the fourth proviso to Section 153A requires material showing that escaped income is represented by an identifiable asset specified in Explanation 2, together with the Assessing Officer's objective and independent recorded satisfaction. Loose papers alleging cash payments for land, without identifying or establishing acquisition of immovable property or another specified asset, do not satisfy these conditions. Material potentially supporting an unexplained-investment addition cannot replace the separate jurisdictional basis for extending the search-assessment period. Subsequent merits enquiries cannot cure an invalid notice; notices and consequential assessments issued without the required foundation are without jurisdiction.

Reassessment based solely on information that immovable property was sold lacks a jurisdictional foundation unless material links the sale proceeds to income escaping assessment. Statutory approval must reflect the approving authority's independent and reasoned satisfaction; mechanical endorsement is insufficient, rendering the reassessment and resulting assessment invalid. Agricultural land located beyond the prescribed municipal limits falls outside the definition of a capital asset where supported by relevant municipal evidence and affidavit. Its transfer therefore does not attract capital-gains taxation, and any related long-term capital-gains addition is unsustainable.

Section 149(1)(a) imposes a three-year limitation for reassessment notices. The extended period under section 149(1)(b) applies only where material indicates escaped income of at least Rs. 50 lakh represented by an asset, expenditure, or book entry, and its conditions require strict satisfaction. Jurisdiction under section 148A(d) must be founded on the issue that remains after considering the taxpayer's response. Where the surviving basis is denial of a deduction below the statutory threshold, rather than an allegation of unexplained deposits, the extended limitation is unavailable. A notice issued beyond three years is therefore time-barred, and the consequential reassessment lacks jurisdiction.

For AY 2016-17, section 80AC did not apply to deductions under section 80P, as its expanded scope applied only from AY 2018-19. Section 80A(5) required a deduction claim in a return of income but did not require filing within the section 139(1) due date. A return accepted under section 148 and used for assessment satisfied that requirement; the sixth proviso to section 139(1) did not apply to a co-operative society or section 80P deduction. Interest from temporary bank deposits of idle business funds of a co-operative credit society was attributable to its member-credit business and qualified under section 80P(2)(a)(i), where the funds were not liabilities payable to members.

Prior opportunity before an adjustment in return processing is a mandatory statutory condition; failure to provide it vitiates the processing and renders the adjustment unsustainable. A charitable entity's accumulation claim requires substantive examination in rectification proceedings where revised Form 10B, an asserted inadvertent return-filing error, and supporting indemnity material are produced. The corrected claim should not be rejected merely because it requires reasoning; the taxable-income computation must be reconsidered and consequential rectification undertaken in accordance with law.

Commissioner (Appeals) must decide income-tax appeals on merits through a written, reasoned order identifying the points for determination and the basis of the decision. Sections 250 and 251 permit ex parte disposal where an assessee does not participate despite notice, but do not permit dismissal solely for non-prosecution. Such dismissals require fresh adjudication after a reasonable opportunity of hearing. Delay caused by electronic communication of an appellate order, despite a request for physical service, warrants a liberal, justice-oriented approach to condonation where the delay is not inordinate.

A consequential assessment framed under Section 143(3) read with Section 263 lacks an independent legal basis when the revisional order under Section 263 that authorised it has been quashed for a jurisdictional defect and the original assessment stands restored. In those circumstances, the consequential assessment cannot survive, and the disallowance is deleted. The characterisation of the claimed loss as capital or revenue expenditure does not require consideration because the assessment fails for want of a valid jurisdictional foundation.

Reassessment proceedings require communication of the recorded reasons to the assessee and valid service of the mandatory notice under section 143(2). Where the assessee requests the reasons after responding to the reassessment notice, dispatch alone is insufficient if the reasons and notice are returned unserved. Available addresses in departmental records, including prior use of affixture, must be considered for effective service. Failure to furnish the recorded reasons and serve notice under section 143(2) renders a reassessment under sections 144 and 147 invalid and void from inception.

Concealment penalty cannot be sustained under Section 271(1)(c) when the quantum addition forming its sole basis has been deleted. Where a challenge to the quantum deletion remains pending, the underlying issue is debatable; penalty for concealment is not leviable on such a debatable issue. The concealment penalty was therefore deleted in favour of the assessee.

Reassessment validity depends on compliance with limitation, mandatory scrutiny notice, and statutory approval requirements. Extended limitation under relaxation legislation did not preserve a notice for assessment year 2015-16 issued after 1 April 2021. Where a return responding to reassessment is filed before completion, even if belatedly, it cannot be treated as non est; notice under section 143(2) is mandatory before reassessment. For reopening after three years from the relevant assessment year, approval must come from the authority specified under section 151(ii); approval by a Principal Commissioner does not meet the prescribed hierarchy, and time relaxation does not alter it. Non-compliance creates jurisdictional defects rendering reassessment unsustainable.

Section 153C jurisdiction over a non-searched person depends on satisfaction being recorded within the statutory search-assessment framework. Recording satisfaction only after completion of the searched person's assessment falls outside that framework and invalidates the resulting assessment. Where the applicable provision excludes recourse to Section 153C, any permissible reassessment must instead be initiated under Section 147. The assessment was therefore treated as jurisdictionally invalid.

Section 69A requires proof that the assessee acquired the property alleged to be unexplained. Use of the assessee's Importer Exporter Code for imports, without evidence of payment, ownership, or use of the goods, does not establish acquisition. Contemporaneous records showed that another entity arranged the imports, paid customs duty, retained title to the equipment, and made payments to the foreign seller through the customs-clearance agent. With no supporting material in the assessee's financial records or other inquiry, the addition for alleged unrecorded import purchases was unsustainable and deleted.

Recorded sales receipts entered in audited or maintained books cannot be assessed again as unexplained money under Section 69A merely because purchasers' identities are doubtful. Section 69A applies only where money or assets are unrecorded and their nature and source remain unexplained. Revenue must first displace the correctness of the books and establish that the receipts lack nexus with the recorded sales entries. Doubt concerning purchasers, without that demonstration, does not justify an addition. Accordingly, recorded sales receipts are not liable to addition under Section 69A.

Section 80G approval cannot be denied merely because a trust registered under section 12AB incurs limited expenditure on spiritual knowledge and satsang activities. Such expenditure, being less than 5% of donations and accompanied by substantially greater spending on food, clothing, community meals, medicines and administration, did not establish a disqualifying religious purpose. Spiritual meetings conducted for the community at large, without benefiting trustees or a particular community, remained consistent with charitable objects already considered for section 12AB registration. The trust therefore satisfied the conditions for section 80G approval.

Concealment penalty does not arise merely because a disclosed gift is rejected in quantum assessment where the recipient establishes the donor's identity, creditworthiness and the genuineness of the banking trail. Donor confirmation, PAN, bank statements and the recipient's bank statement supported the source and movement of funds. Penalty under Section 271(1)(c) was therefore not imposable on the disclosed gift receipt.

Revision under section 263 requires an assessment order to be both erroneous and prejudicial to Revenue. Deduction under section 80P(2)(d) on interest from a Regional Rural Bank had been specifically examined and allowed after inquiry, following jurisdictional High Court precedent treating a Regional Rural Bank as a co-operative society through the statutory deeming fiction in the Regional Rural Banks Act, 1976. Section 80P(4) did not displace that precedent. A later contrary coordinate-bench view could neither retrospectively make the assessment erroneous nor override binding High Court authority. Explanation 2 to section 263 did not apply because there was no lack of inquiry; consequently, revision was unsustainable.

Section 69A applies only where jewellery found in possession is not satisfactorily explained. Jewellery within customary family holdings may be assessed with reference to CBDT Instruction No. 1916, while earlier voluntary disclosure can independently support its source. In the absence of material proving exclusive ownership or unexplained acquisition in the relevant year, such jewellery is not taxable as unexplained assets. Section 69B requires evidence that an investment exceeds what is recorded in the books. Stock supported by contemporaneous purchase entries, invoices, banking payments and the actual owner's financial records is explained; valuation differences alone do not establish unrecorded investment without contrary material.