a) Supply and delivery of different type of Electrical accessories for day to day maintenance work of E.I. of different sites under NKDA. b) Necessary electrical installation and wiring including special repairing works at 03, MAR NKDA building and other sites at, Newtown, Kolkata under NKDA. c) Providing necessary wiring including supply with all accessories through prelaid polythene pipe during construction of basic work at Executive Club, Newtown, Kolkata under NKDA.