Section 133(6) of the Income Tax Act

When purchases are unproved or presumed to be from the grey market, the entire amount of such purchases should not be disallowed; instead, income can be estimated by applying a reasonable gross profit rate to the unaccounted sales or turnover, especially in assessments arising from search proceedings involving seized documents.

When an assessee provides the identity and address of a creditor or investor for a cash credit or share capital under Section 68, the burden shifts to the Department to establish lack of genuineness or creditworthiness, requiring it to conduct further inquiries; mere non-compliance by third parties to summons cannot be the sole basis for an adverse inference against the assessee.

For reassessment proceedings under Section 148, the Assessing Officer only needs prima facie material to have a reason to believe income has escaped assessment. Conclusive proof or evaluation of the sufficiency and correctness of such material is not required at the stage of issuing the notice.

When computing deduction under Section 10A, if communication or telecommunication expenses are excluded from export turnover, they must also be excluded from total turnover to maintain consistency and apply the ordinary meaning of 'turnover' in context.

If an assessee company receives share application money from alleged bogus shareholders and provides their details to the Assessing Officer, no addition can be made under Section 68 in the company's hands; the Department must proceed against the shareholders by reopening their individual assessments.

If an assessee makes purchases from bogus parties, but the underlying goods are genuinely acquired and sold, only the profit margin embedded in such purchases, and not the entire value of the bogus purchases, should be added to the assessee's income.

Fiscal statutes mandate strict compliance with regulatory requirements, especially for claiming benefits or exemption clauses. The doctrine of substantial compliance applies only when mandatory requirements are fully met, even if some directory requirements are not.

The onus to prove that an apparent transaction or explanation is not real lies with the person who claims it to be so. If an assessee provides a plausible explanation for a transaction, the revenue must establish that the apparent transaction is not genuine.

The Supreme Court emphasized that in the absence of concrete rebuttal by the assessee, circumstantial evidence holds significant weight, applying the doctrine of preponderance of probability, particularly when assessing undisclosed income or unexplained cash credits.

An assessee discharges the initial onus under Section 68 for cash credits by providing creditor details like PAN and addresses, proving creditworthiness via banking transactions, and demonstrating genuineness, especially when loans are repaid through cheques.