Details: note: 1. concessional gst of 12% is applicable here against issuance of essentiality certificate by dgh. ongc shall arrange ec from dgh office on submission of proforma invoice by the bidder.2. being lstk tender, bidder will be responsible to complete the job as per scope of work within the quoted price app-a: material supply as per scope of work & other terms and conditions. note: - 1. being lstk tender, bidder will be responsible to complete the job as per scope of work within the quoted price app-b: services as per scope of work & other terms and conditions.