Tender for Providing Of Operation And Maintenance Of Switchyard - Cost Estimate For Major Overhauling Of 145kv Sf6 Circuit Breaker Of 132kv Khurram Nagar Bay & Isolator Of 132kv Khurram Nagar & Chinhat Bay And Survey For Preparing Layout For Modification Of Substation At 132 Kv Sub Station Nkn Under E.t.d.-11, Lucknow. in Lucknow - Uttar Pradesh

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