Operation and Maintenance of Internal and External Electrical and Mechancial installations in Integrated Terminal Building, Operation of Lifts and Escalators in Integrated Terminal building, Supply of lead Acid Battery 12V, 150 AH, heavy duty maintenance, Supply of lead Acid Battery 12V, 120AH, heavy duty maintenance free for DG sets, Supply of lead Acid Battery 12V, 18AH, heavy duty maintenance, Supply of Converter, Supply of One- 01- KVA UPS with built- in battery, Rewinding and servicing of ceiling fan motors, Painting of LT panels- Feeder pillars, Comprehensive Annual Maintenance Contract of Existing 3KVA Online UPS for 1st year, Comprehensive Annual Maintenance Contract of Existing 3KVA Online UPS for 2nd year, Comprehensive Annual Maintenance Contract of Existing 4KVA Online UPS for 1st year, Comprehensive Annual Maintenance Contract of Existing 4KVA Online UPS for 2nd year, DSR 2022, DSR 2023