(a) complete repairing/rewinding of one no.500 kva 3.3kv/550 volt power transformer sl.no.lph/tr/12 at 1 pit lodna colliery and (b) complete repairing/rewinding of one no.400 kva 3.3kv/440 volt lighting transformer sl.no.lph/tr/13 at 1 pit lodna col

Comp. amc of 4 nos otis lift 1 no 14 passenger capacity, 3 no 10 passenger capacity with ard and door sensor installed at 40 court building, civil court, ranchi for the period of 3 years.

New establishment of 6 nos. of earth pit (jelly field) and 18 nos. of lighting arrester with pvc insulated cable at 6 no. sub-station of dalurband colliery.

New establishment of earth pit (jelly filled) at substation of no. b pit -7 nos. and pit no. 2- 7 nos. along with fencing and pvc insulated cable at pandaveswar colliery.

New establishment of earth pit (jelly filled) at substation of kendra no. 3 pit -7 nos. and pit no. 2- 7 nos. along with fencing and pvc insulated cable.

Earth continuity from quarry sub-station to 9 no sub-station and maintaining its effectiveness for 5 years in dalurband colliery.

New establishment of jelly field earth pit as per cear for 3 nos. main 33kv/6.6kv transformer and 20 nos. of field transformer along with proper identification / marking and management of earth resistance for three years in khottadih colliery.

New installation of chemical earth pit at different places under madhaipur colliery along with fencing, filing up with sand and pvc insulated cable.

New installation of wti and oti in 2 nos. of 1 mva, 11kv/3.3kv transformer at 6 no. and 9 no sub-station of dalurband colliery

Supply and installation of lighting arrester at different places of dalurband colliery like electric substation and over head line.