S. 69C : Unexplained expenditure – Bogus purchases – Information from Investigation Wing – Addition restricted to 4% justified – Additional ground of Revenue to disallowance at 100% of alleged bogus purchases is rejected – No justification for 100% disallowance in absence of suppression of sales –Books of account not rejected – PCIT v. Kanak Impex (India ) Ltd [2025] 172 taxmann.com 283/ 474 ITR 175 (Bom)( HC) is referred . [ S.145, 147 , 148 ]