( 1 ) BY a memo dated April 7, 1999 the petitioner accepted the tender submitted by the respondent for certain works of renovation at the Central Store Building Survey of India at 15, Wood Street, Calcutta. Clauses 5 and 7 of the letter of acceptance of Tender being relevant herein are quoted below :". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (5) You are requested to attend this office to complete the formal agreement within 7 (seven) days of the receipt of this letter. (7) You are also requested to please obtain a valid licence under the Labour (Randa) Act, 1970 and the Contract Labour (Regulation and Abolition) Central Rules, 1971 before the commencement of the work and continue to have a valid licence till the completion of the work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .