(1) changing cork sheet, rubber bush, and l.t stud with insulator including materials of 250 kva ratio 6.6kv/440v volt sl.no.2205 make crompton parkinson at katras chaitudih office. (2) complete repairing of 175 hp auto starter make speed engineering

(1) changing cork sheet, rubber bush, and l.t stud with insulator including materials of 1000 kva ratio 6.6kv/550v at katras area chaitudih. (2)complete repairing of 200 amps, sd-15 switch make-kilburn, o.c.b, sl.no.9062 for 50 hp

For complete rewinding of 500 kva 6.6 kv/550 volts sr.no.6511/82 transformer installed at 22/12 sub-station of mudidih colliery under sijua area.

Repairing and changing of cork sheet and rubber bushes with stud of 300 kva/11kv/550/440v lighting transformer sl. no.674/1 at bastacolla colliery.

Transformer oil filteration, testing silicagel with breather cork sheet stud changing of 500 kva and 750 kva transformer and temprature meter or sensor fitting at bnr siding, rocp/sj.

(a)cork sheet changing, copper stud and repairing of 2.5 mva, 6.6 kv/3.3 kv, make-east india ltd, sl.no.1561/2 power transformer for kantapahari sub-station at akwmc under katras area. (b) complete repairing/ overhauling of 400 amp 6.6 kv grade

(1) (a) complete rewinding of 02 nos.transformers - 500 kva, 6.6 kv/440 volt, 3 phase, sl.no. 18080, 2 pit sub-station of agkc colliery under katras area (b) repairing of 750 kva, 6.6 kv/550 volt, 3 phase lighting transformer sl.no. agkcc/fp/tr-750/0

For repairing changing of cork sheet, stud, rubber bush insulator of transformer 500kva,6.6kv/440v installed at basdeopur colliery(ii)and 1000kva lighting transformer 6.6kv/440v make-crompton parkinson sl.no.20200v at 2 pit hanuman bazar kankanee

Repairing of 500 kva transformer 6.6 kv/550 volt sl.no.224195/3 make-gec at angarpathra 12 no.aarc, akwmc katras area.

For changing of copper stud and cork sheet and copper patti of 250 kva, 6.6kv/550v transformer make the english electric sl.no.1h2679/2 at bhadrichak substation substation of mdc.