S. 68 : Cash credits-Burden of proof on Revenue to establish that credits represented undisclosed income-No evidence that explanation of assessee was false-Allegation of money laundering is a very serious allegation and the effect of a case of money laundering under the relevant Act is markedly different-The order passed by the Assessing Officer was utterly perverse and had been rightly set aside by the appellate authorities-Deletion of addition is justified.