a) Day to day maintenance of electrical installation and operation of 45KVA diesel generator including supply of essential spares etc at NKDA office 01 MAR building at Action Area-IA at Newtown, Kolkata under NKDA. (01/01/2020 to 30/06/2020) b) Day to day operation and maintenance of electrical installation and accessories including replacement of essential spares etc at "Prismoidal Tower at Action Area-lB, near Home Town,(01/01/2020 to 30/06/2020) c) Replacement of damage cable, loop box and ot