1. Maintenance of Ferrule and connecting pipes for ne year at New Town, Kolkata. 2. Special drive for cleaning of jungles, bushes etc. etc. of block CB and CA and CC of street no. 199(south side portion) from Power Grid to street no. 240 vacant plots within Action Area-1C in New Town, Kolkata in connection with to combat the dengue etc. 3. Yearly maintenance for cleaning & removing of water hyacinth and semi solid materials of Water Body from Culvert of Street no. 276 to culvert of Street no.