Tenders for Rate Contract For Covering Of Lignite And Limestone Stockpiles By Tarpaulin, It’S Maintenance And Withdrawal For The Period Of Two Monsoon Seasons I.E. I From 16Th May 2021 To 15Th Oct 2021 And Ii From 16Th May 2022 To 15Th Oct 2022 At Slpp Power Plant