S. 40(a)(ia): Amounts not deductible-Deduction at source-catering expenditure for purpose of supply of food packets to its employees-Subjected to GST-Not contract-Not liable to deduct tax at source-Business promotion expenses to promote business and rewards to employees to achieve work targets-Facilities/amenities made available by hotel to its customers do not constitute ‘work’ within meaning of section 194C-Hotel room booking expenses incurred by assessee were not liable to TDS under section 194C. [S. 194C]