S. 194C : Deduction at source-Contractors-Provision does not contemplate existence of contractual relationship between person responsible for paying and contractor-Existence of contract can be an arrangement which contractor had with payer-No discretion in payer to examine or contemplate chargeability of payment to tax-Payments of external development charges to Urban Development Authority of State Government under direction of Directorate of town and country planning-Absence of formal contract between authority and department does not absolve assessee from liability to deduct tax at source-State Government-Immunity from taxation-Statutory authority established by an enactment of State legislature-Not a Government-Does not have immunity from Union taxation-Penalty-Interest-Reasonable cause-Taxability position remaining unclear-Directions issued accordingly-Reassessment-Notice-Failure to deduct tax at source on payment to statutory authority-Notice based on issue of applicability of Section 194C-Notice and order is set aside. [S. 147, 148,190, 196(1) 196(3) 197, 197A, 201, 221, 271C, 273B, Art. 226, 289