S. 40(a)(i) : Amounts not deductible – Deduction at source -Non-resident – Reimbursement of mobilisation and demobilisation costs to a foreign company – Subsequently the foreign company was held liable to tax in India – Not liable to deduct tax at source – Cannot be treated as assessee -in -default – DTAA -India – Netherlands .[ S. 9(1)(vi), 195, Art. 12, Art. 136 ]