S. 69C: Unexplained expenditure-Alleged bogus purchases-Produced documentary evidence such as purchase invoices, stock records, RTGS payments, GST returns, supplier confirmations, and segment-wise accounts-Matter was remanded back to the AO to obtain the bank account details of MT Co., and verify whether there exists any cash trail; if no such cashback trail is established upon verification, and payments are found to have remained within the banking system, then the addition is to be restricted only to the embedded profit element @ 5 per cent. [S. 145]