Electronic filing rules broaden CBDT authority to require verification, disclosures, and secure transmission for tax returns.
Clause 263(2)(a) expands CBDT rule-making authority over procedural return-filing aspects by authorising prescription of classes of persons, the form and manner of furnishing returns, methods of verification, supporting documentation requirements (including post-filing production), and the technological resources or electronic records for transmission, thereby enabling broader disclosures, digital authentication, and integration with other databases to support data-driven compliance.

Return filing modernization enables rulemaking for electronic forms, verification, and document on demand in a risk based regime.
Clause 263(2)(a) empowers the Board to prescribe the form, manner, verification and electronic transmission of returns, to specify which supporting documents need not accompany the return but must be produced on demand, and to require prescribed particulars in returns (such as exempt income, specified assets, bank and card details, high value expenditures, audit reports and business or partner details), thereby enabling a risk based, post filing verification regime and differentiated electronic filing requirements for classes of taxpayers.

Mandatory Return Filing expands scope and tightens timelines while enabling updated returns with safeguards.
Clause 263 consolidates and expands return-filing obligations by listing classes of mandatory filers, requiring threshold income computation without regard to specified exemptions, defining key terms such as beneficial owner and specified entity, prescribing differentiated due dates, authorising rule-making for electronic filing and return particulars, providing a nine-month window for belated and revised returns, maintaining a forty-eight-month updated return regime subject to specified exclusions, and setting a procedure for defective returns with a rectification period and potential invalidation if unrectified.