Complete repairing and overhauling of 400 amp, 440v, ocb with busbar make gec sl no 30/0039 for lighting line (passi patti)) at site of gopalichak colliery.

For repairing of ocb sl.no.6590 ece make 600a, 550v/440v of bansdeopur colliery of sijua area.

Repairing and overhauling of different 03 nos. l.t switches, (550v, 400a, make- gec sl.no. 30/406), (550v, 600a, make-s.s.g, sl.no. 0320) and (550v, 300amp, make- kilbern) at different sub-stations under kankanee colliery. (b) for repairing of oc

Repairing/complete &#x0d rewinding of 125 kva, &#x0d 550v/440v &#x0d lighting &#x0d transformer sl no tr&#x0d 12651-3 of gopalichak &#x0d colliery.

Complete repairing and overhauling of 800a, 550/440v ocb with busbar switch ece make sl no - 6597 at site in chandro sub-station gopalichak colliery.

Complete repairing and overhauling of 200 hp, star delta starter ocb type 440v, make kilburn at gopalichak colliery, pb area.

Complete repairing rewinding of 400 amps 550v reyroll england make ocb switch of bankola colliery.

For repairing of lt switch (ocb) 440v, 400 amp of 7/8 sub-station, tetulmari colliery under sijua area. (b) for repairing of sd-15, 200 amp, 550v switch for tetulamari colliery under sijua area

Complete repairing and overhauling of 11kv 400 amps ocb with busbar switch crompton greaves make sl no 23599g at site in chandro sub-station gopalichak colliery.

Complete repairing/overhauling of 400 amps 550v gec make ocb sl. no. 314711/117 local id.no. jl/sw/ocb/550v/17 at 2 pit jealgora colliery of amal. joyrampur colliery under lodna area.