Exploratory drilling works of one hole of 50m depth in right bank of the river at el 415m for subansiri upper he project 1605mw, arunachal pradesh

Exploratory drilling works of one hole of 150m depth on left bank at el320 m to explore the area between el 296m and el346 m for subansiri upper project (1605 mw), arunachal pradesh

Exploratory drifting work of ldr-1 extension of 82 m (52plus 15plus 15) m length (1.8 m x 2.1m) size at left bank of kamala river at kamala he project, tamen, arunachal pradesh

Exploratory drilling works of one hole of 50m depth in plunge pool area at right bank of river for subansiri upper project 1605mw, arunachal pradesh

Geological exploration by extension of 01 no. of already existing drift (rdr6), drift size 1.8x2.1m rectangular section by another 130 m on right bank of river subansiri at power house site of subansiri upper project in arunachal pradesh

Exploratory drifting work of ldr-1 extension of 82 m (52plus15plus15) m length (1.8m x 2.1m) size at left bank of kamala river at kamala he project, tamen, arunachal pradesh

Exploratory drifting work of ldr-3 extension-2 (downstream surge cavern)361 m length (1.8 m x 2.1m) size at left bank of kamala river at kamala he project, tamen,arunachal pradesh

Exploratory drilling works of one hole of 165m depth at left bank of river near dam axis to establish grouting requirement by carrying out groutability testing for subansiri upper project (1605mw)

Geological exploration by extension of 01 no. of already existing drift (rdr6), drift size 1.8x2.1 m rectangular section by another 130 m on right bank of river subansiri at power house site of subansiri upper project in arunachal pradesh.

Exploratory drifts work of size 1.8 m (w) x 2.1 m (h) of rectangular section at power house site of kamala he project, arunachal pradesh