With  reference to Tender Notice No.167-ITPO(3)/Engg./Elect./ 2013-14/972 dated 03.04.2013 for work of “Annual   Comprehensive Maintenance Contract of  R.O. Water purifier machines at Pragati Maidan, New  Delhi  during 2013-14 Ã¢â‚¬Â The ESI & EPF Nos. are not required as per attached check list with NIT.  The date of sale of the tenders is being extended up to 18.4.2013 and now the technical bid will be opened on 22.4.2013 other terms and condition will remain same.