Any person responsible for paying any sum to any resident (hereafter in this section referred to as the contractor) for carrying out any work (including supply of labour for carrying out any work) in pursuance of a contract between the contractor and (a) the Central Government or any State Government; or (b) any local authority; or (c) any corporation established by or under a Central, State or Provincial Act; or (d) any company , or (e) any co operative society , or (f) any authority, constituted in India by or under any law, 543 engaged either for the purpose of dealing with and satisfying the need for housing accommodation or for the purpose of planning, development or improvement of cities, towns and villages, or for both; or (g) any society registered under the (21 of 1860) or under any law corresponding to that Act in force in any part of India; or (h) any trust; or (i) any University established or incorporated by or under a Central, State or Provincial Act and an institution declared to be a University under section 3 of the (3 of 1956 , shall, at the time of credit of such sum to the account of the contractor or at the time of payment thereof in cash or by issue of a cheque or draft or by any other mode, whichever is earlier, deduct an amount equal to two per cent of such sum as income tax on income comprised therein.