The document discusses requirements for deducting tax at source on cross border payments to non-residents. It covers topics like chargeability to tax under section 195, scope of income as per sections 5(2) and 9(1), rate of withholding tax determined by section 90(2) and tax residency certificates under section 90(4). It also explains the new requirements introduced by notification 93/2015 for furnishing information in Form 15CA and obtaining an accountant certificate in Form 15CB for certain payments to non-residents.