S. 90 : Double taxation relief-Foreign tax credit (FTC)-Filling of statement in Form 67 on or before due date specified for furnishing return of income under section 139(1) is mandatory in nature and not directory-Statement in Form 67 after a delay of two years from due date of furnishing return of income-No valid reason-Justified in disallowing FTC claimed by assessee due to non-filing of Form 67 within time. [S. 139(1), Rule, 128(9), Form 67]