CVPP/PDHEP/P&C/M(C)/NIT- 51/2017-18/368 : Diamond core drilling including driving, ramming of drill holes for lowering of casing of NX & HX size for 2 Nos one of +(-) 167.70 mtrs (DD-16) & other of +(-) 179.20 (DD-17) mtrs depth including core preservation water percolation test as per GSI recommendation and relevant IS codes at every 1.50m interval in all types of strata at left bank of Dam site on the tunnel spillway alignment of Pakal Dul HE Project, Kishtwar.