Prior written or electronic intimation to the assessee is mandatory before making an adjustment during return processing, including an adjustment under Section 143(1)(a)(vii). Failure to issue a show-cause notice or other prior intimation invalidates the resulting intimation and adjustment. Unavailability of accounts and absence of statutory notice, preventing access to the impugned order and timely pursuit of the remedy, constitute sufficient cause for condoning delay in filing an appeal under Section 249(3).

Material additional evidence concerning the formation and operation of a special economic zone undertaking was admitted for fresh consideration of the deduction claim and transfer-pricing adjustment. Its relevance lay in determining whether the undertaking was newly established or resulted from splitting up or reconstruction of an existing business, and in examining interconnected functional and procurement arrangements affecting arm's-length determination and eligible profits. Fresh adjudication must consider the additional and relevant material after providing a reasonable opportunity of hearing; no merits determination was made on either claim.

Salary and rent paid by a charitable trust to specified persons may constitute prohibited benefits where they exceed the justified value of services or comparable market remuneration. Sections 13(1)(c) and 13(2)(c) restrict application of trust income for such persons' benefit, affecting exemption under section 11. Substantial, unexplained salary increases, including increases of 38.80% in certain instances, and excessive rent were treated as benefits rather than eligible charitable application of income. The corresponding payments were therefore not eligible for exemption.

Section 69A permits cash owned by an assessee to be treated as unexplained income where it is unrecorded in the books and its nature and source are not satisfactorily explained. A bare claim regarding source, unsupported by a cash book, ledger, income-expenditure statement, or other corroborative material, does not meet that evidentiary requirement. Where cash is validly assessed as unexplained money under Section 69A, Section 115BBE applies the prescribed special tax rate. Search-related penalty under Section 271AAB(1A)(b) may be linked to an unexplained-cash addition arising from a search seizure.

A challenge to an Assessing Officer's rectification order under section 154 must follow the statutory appellate sequence. Direct recourse to the Tribunal is non-maintainable where no appeal against the rectification order has first been filed before the Commissioner (Appeals). An erroneous reference in the appeal form to a Commissioner (Appeals) order does not cure the failure to invoke the prescribed first appellate forum.

Penalty under Section 271(1)(c) requires clear identification and proof of either concealment of income particulars or furnishing inaccurate particulars, which are distinct defaults. Inaccurate particulars concern incorrect, erroneous or false details in a return, whereas non-disclosure falls within concealment. Where a penalty order invokes both defaults without conclusively identifying either, and Explanation 1 does not apply because the taxpayer's explanation was neither found false nor rejected and formed the basis of the addition, statutory conditions remain unmet. The civil nature of the penalty dispenses with mens rea but does not make penalty automatic upon an addition.

Double taxation arises where recorded sales, already included in taxable profit, are treated as bogus while the alleged cash returned against those same sales is separately added to income. Audited books, sale bills, vouchers and stock records substantiating the sales support deletion of such an addition where no defect in those records is identified. The separate cash addition is unsustainable because it taxes the same recorded sales twice.

Share application money from identified corporate investors is satisfactorily explained under Section 68 when PAN details, board resolutions, bank statements, financial statements and confirmations establish investor identity, available funds and receipt through banking channels. Once this initial onus is discharged, an addition requires material evidence rebutting those records. An investigation report or a retracted third-party statement, particularly where cross-examination is not allowed, cannot alone sustain an unexplained cash-credit addition. Suspicion and presumptions cannot replace evidence; on these facts, the Section 68 addition was to be deleted.

Section 68 requires a satisfactory explanation of the nature and source of credits recorded in the assessee's books. Lender confirmations, PAN details, bank statements, instruction letters and affidavits may establish the lenders' identity, financial capacity and the genuineness of unsecured loan transactions routed through banking channels. Alleged diversion or misuse of funds earlier in the transaction chain does not render the assessee's credits unexplained unless a nexus with those credits is demonstrated. Non-production of lenders or unserved notices, without further enquiry or evidence disproving the records, cannot by themselves displace documentary evidence. Accordingly, a Section 68 addition is unsustainable where the loans are satisfactorily explained.

Under the transitional reassessment framework, proceedings under Section 148A and a fresh Section 148 notice must be completed within the surviving limitation period after applicable exclusions. A notice issued after that period is time-barred, rendering the consequential reassessment void ab initio and unavailable for revision under Section 263. Revision also requires a valid assessment order that is both erroneous and prejudicial to Revenue interests. Where the Assessing Officer has examined share acquisition and sale records, contract notes, demat and bank records, securities transaction tax, accounts, and capital-gain claims, actual inquiry and application of mind cannot be treated as no inquiry merely because further inquiry is preferred.

Section 69A applies only to money not recorded in the books of account and not satisfactorily explained. Cash deposits arising from recorded cash sales during demonetisation are explained where audited books, cash book, sales and purchase registers, stock records, sales bills and VAT returns support the receipts, and no defect or contrary verification evidence exists. Increased turnover and a lower gross-profit rate may be explained by a shift to lower-margin jewellery trading and seasonal sales. Without rejecting the books under Section 145(3) or disproving the sales, the recorded receipts cannot be selectively assessed as unexplained money; doing so would also create double taxation.

Cash deposits in a banking correspondent's current account require fresh factual verification where evidence may show that they arose from customer deposits and withdrawals rather than unexplained money. Commission income subject to tax deduction and non-participation attributed to incorrect registered contact details support an opportunity to produce evidence. The character and unexplained portion, if any, of the deposits must be determined de novo before liability for penalty for unexplained income is considered. Consequently, an existing penalty is premature and cannot stand until the foundational determination is made.

Penalty under Section 271D for contravention of Section 269SS requires valid initiation based on the Assessing Officer's recorded satisfaction in the assessment order. Although the Joint Commissioner has power to impose the penalty, binding jurisdictional precedent consistent with the Supreme Court's approach requires the Assessing Officer to identify the alleged violation and record satisfaction before initiating penalty proceedings. Where the assessment order contains no such satisfaction, the penalty lacks a jurisdictional foundation and is unsustainable.

Eligibility for profit-linked deductions requires a newly established undertaking to be an identifiable, integrated and independently capable manufacturing unit that commenced commercial production by the prescribed date. Shared products, common invoicing, phased capacity expansion and permissible use of old machinery do not alone establish splitting up or reconstruction where contemporaneous records support independent production. Initial-year qualification sustains deduction entitlement for the relevant statutory period. Depreciation is available where machinery is installed and kept ready for business use; delivery at the end of the previous year does not bar the claim absent evidence that the asset was unavailable or incapable of deployment.

Cancellation of a trust's registration under section 12AB(4) cannot rest on alleged conduct before 1 April 2022: the specified-violation regime operates prospectively and requires identification of the applicable statutory clause, a separate inquiry, and recorded satisfaction. Uncorroborated search material or retracted statements do not establish a specified violation where educational activities remain genuine and no registration condition is shown to have been breached. Alleged benefits to specified persons may result in denial of exemption or assessment-stage taxation under section 13(1)(c), but do not alone justify cancellation. Following centralisation under section 127, the Principal Commissioner (Central) may exercise cancellation jurisdiction. The registrations consequently remain effective.

Electronic material used for tax additions requires valid certification, reliable seizure and custody records, and independent corroboration; defective server data, unverified WhatsApp chats, and untested employee statements cannot alone support additions. Post-search assessments for prescribed years must follow the special reassessment procedure rather than ordinary scrutiny, rendering an assessment made only under section 143(3) invalid. Routine repairs, annual software licences, and business-use expenses remain revenue deductions, while software support spanning later periods must be apportioned. Short tax deduction does not trigger disallowance, but unexplained non-deduction may do so. Cash-payment restrictions apply per payee per day, not through aggregation across recipients, and deduction quantification supported by audit material remains sustainable absent a contrary basis.

Revision under Section 263 applies where an assessment accepts a claim without necessary inquiry or application of governing tax provisions, making it erroneous and prejudicial to the Revenue. Under cash-basis accounting, allotment of equity shares of ascertainable monetary value in satisfaction of accrued interest on conversion of zero-coupon debentures constitutes constructive receipt and is taxable as interest income. The capital-gains exclusion for debenture-to-share conversion does not exempt embedded interest income. TDS credit cannot be claimed while denying taxability of the corresponding interest, and taxed interest forms part of the shares' cost base to prevent double taxation on a later sale.

Under the India-Netherlands DTAA, an Indian permanent establishment of a foreign bank is not entitled to domestic-company tax rates merely under Article 24(2), because foreign-company taxation is not less favourable treatment. The Article 7 separate-entity approach treats cross-border interest between the permanent establishment and its head office or branches as attributable income and permits expense recognition only subject to withholding; failure to comply with tax deduction requirements causes disallowance. Automated teller machines may receive computer-rate depreciation where their data-processing functions meet the relevant asset classification. Vehicle lease rentals used for business remain revenue expenditure where the arrangement is hiring rather than acquisition; accounting treatment under AS 19 does not control tax deductibility.

For a Netherlands-incorporated foreign bank, the Indian permanent establishment is taxable at the foreign-company rate rather than the domestic-company rate because it does not meet domestic-company conditions and is not similarly situated to a domestic company for treaty non-discrimination purposes. Treaty separate-entity treatment recognises interest dealings between the Indian PE, head office and overseas branches for profit attribution. Outbound interest remains deductible only where domestic withholding requirements are met; failure to withhold triggers disallowance. Corresponding interest received by the Indian PE is taxable business income, and mutuality does not exclude it from taxable profits.

Rule 18(4) of the Income-tax (Appellate Tribunal) Rules permits additional evidence through a separate paper book supported by an application explaining the reasons for its production. Records lost, damaged or soiled and subsequently retrieved may therefore be received and evaluated under that procedure. Evidence-based findings on additions, including Section 68 additions, remain factual where supported by confirmations, transaction details, accounts, banking records, certificates and related material. In the absence of perversity, a challenge requiring reappreciation of that material does not raise a substantial question of law.