Tender for Comprehensive Maintenance (preventive & Breakdown) & Operational Contract Including Round The Clock Supervision (ess-01, 02, South Portal Ess, North Portal Ess, Pumping Sets, Circulating Area, Service Buildings Etc) & Work Of 11 Kv, Ventilation, Electromechanical (e&m) For Pir-panjal Tunnel T-80 For Two Years. in Multi City - Multi State

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