Contract Amendment No.1 Neutralization of Acid Mine Drainage (AMD) contaminated water of some selected streams in a coal mining area of Meghalaya by using Open Limestone Channel Technology (OLCT) using locally available limestone and intermittent wetland

Date
Tuesday, 23 May, 2023
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08/04/2019
08/09/2017
01/07/2016
NH 44  
01/07/2016