Supply of copper earthing cable for LA 1, Brazing of earthing contacts, Replacement of earthing cable for LA 1, Repair of earthing pits associated with LA 1, Supply of Charcoal, Supply of Salt Granules, Supply of earth enhancing compound, Maintenance work of LA 2 mast and Checking and repair of the Earth cable connection above mast, Reconstruction of earth pits inspection Chamber associated with Radar equipment, UPS, Antenna and LA- 1