Carrying out Operation and Maintenance including watch and ward, housekeeping and gardening, MRT Assistance and assistance for Telecom of EHT Sub-stations and lines and CBD and SM Gangs for lines and substations on works Contract basis pertaining to CBD Tallapally, MRT Guntur and TRE Guntur pertaining to O and M Circle Guntur in Vijayawada Zone for the period of three years from the date of awarding of work