Complete repairing of 01(one)no. 100a 440v sd-10 type ocb switch of kilburn make having sl no. 9777 local id -kj/sw/ocb/440 v/20 kept as spare at m-pit sub-station of kujama colliery under lodna area.

Repairing of 1 no.(one)no.400 amps 440volt g.e.c. make ocb switch with busbar local id. no. kj/16 at 3-pit mohari bandh sub-station of kujama colliery under lodna area.

Repairing of one(01) no.400amps 440volt g.e.c. make ocb switch with busbar sl. no.30/ 2135 and local id.no. kj/14 at 3 pit sub-station of kujama colliery under lodna area.

(a) partial repairing of 01(one) no. 400 amps 440 volt a.b.c. make switch (b) repairing of 01(one) no. 200 amps 440 volt kilburn make ocb c) repairing of 01(one) no. 400 amps 440 volt g.e.c ocb switch of kujama colliery

Complete repairing /overhauling of 1 no l.t. o.c.b. switch 440 volts secondary switch 200 amps kilburn make sd-15(local idbccl/st/sw/ocb/400v/14) of amal.nt-st-jn colliery under lodna area.

Repairing of 01 (one) no. 200 amps 440 volt sd-15 type kilburn make ocb switch with busbar sl.no. 14018 local id-bccl/jg/sw/ocb/550 v/33 at durga mandir sub-station of amal.nt-st-jn colliery under lodna area.

Complete repairing / overhauling of 150hp 440 volt kilburn make ocb sl. no 08164 of bastacolla colliery.

Repairing/overhauling of 1 no. 400 amps 11 kv ece ocb switch ( sl. no. 2152166) local id. no. kj/sw/ocb/11kv/02 for power controlling of lighting line at m. pit of kujama colliery under lodna area.

Complete repairing and overhauling of 2 no. l.t. o.c.b.switch 550 volts 200 amps kilburn make sd-15 (1) local id.no. nsw/ocb/550 v/01 (2) local id.no. nsw/ocb/550 v/02 ocb of n.s. workshop under lodna area.

Complete repairing and overhauling of 1 no. 250 amps 440volt kilburn make ocb switch sl. no.573 id no nt/st/ocb /440 v/31 for power controlling of officer colony lighting line switch at amal. nt-st-jg colliery under lodna area.