Complete repairing of gec make, 400 amps, 550v, si. no. 30/2118, ocb switch at railway siding laikdih of dahibari colliery.

Repairing of 400 amps gec make 550/440 volt ocb sl. no. 30/0173 with bus bar controlling kocp.

Complete repairing and overhauling of gec make lt ocb 400 amps, 550 v si no- 30/1538 at langri more of docp under cv area.

Complete repairing and maintenance of gec make ocb 400 amps, 440v s no 30/2525 at boosting pump house under block-ii area

(a)complete repairing and overhauling and safety protection of no. h.t. switch 3.3 kv 400 amps gec make ocb switch sl.no. ocb/m-163 local id no. bccl/nt/sw/3.3kv 05 (b) complete repairing and overhauling of 1 no. 400 amps 440 volt gec make ocb switc

Complete repairing and overhauling of lt ocb crompton parkinson 550 v 400 amps si no- 1269a at dbocp.

Repairing and overhauling of a) gec make 550 v 440 v 600 amps ocb b) kilburn make 600 amps 550 volt ocb c) kilburn make 400 amps 550 volt acb d) abc make 400 amps 550 volt acb at nakrakonda kuamrdihi b colliery under bankola 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

Repairing 400 amp gec make 550/440 volt ocb with bus bar at bastacolla guesthouse bastacolla colliery.

Complete repairing and maintenance of gec make ocb 400 amps, 550 v si no- 30/2049 at enm section of docp under cv area.