Tender For construction of basement, ground floor, 10 storied building for state of the art, director general, gsi office at plot no. gn-40, sector-v, salt lake, kolkata i.c. civil, electrical, mechanical and horticulture works/services on epc basissubwork/packages:maintenance of computers, printers, lan points for internet connections etc. i/c replacement of minor spares parts installed in the office of sdg-region kolkata, cpwd, nizam palace