a)Operation and maintenance of 45 KVA/36 KW departmental generator set at NKDA office 01 MAR, Newtown, Kolkata (From 01/07/2017 to 30/06/2018). b) Day to day maintenance of electrical installation and accessories including supply of essential spares etc at NKDA office 03 MAR at AA-IA, Newtown, Kolkata (From 01/07/2017 to 30/06/2018). c) Day to day maintenance of electrical installation and accessories including supply of essential spares etc at NKDA office 01 MAR at AA-IA, Newtown