oil filration of 04 nos power transformers installed at different locations of kedla open cast project under hazaribagh area 04 nos power transformers installed at different locations of kedla open cast project- 1 a.3 mva, 11 / 6.6 / 3.3 kv a / yule make transformerfilltration of transformer oil 2 cost of gasket 3 complete painting, cleaning of transformer 4 labour charge opening and fitting sl. no. 2 5 b. 3 mva, 11 / 6.6 / 3.3 kv a / yule make transformer filltration of transformer oil 6 cost of gasket 7 complete painting, cleaning of transformer 8 labour charge opening and fitting sl. no. 2 to 4 9 c.1.6 mva, 11 kv / 3.3 kv marson make transformer filltration of transformer oil 10 cost of gasket 11 complete painting, cleaning of transformer 12 labour charge opening and fitting sl. no. 2 to 4 13 d. 1mva, 11kv / 3.3 kv marson make transformerfilltration of transformer oil 14 cost of gasket 15 complete painting, cleaning of transformer 16 labour charge opening and fitting sl. no. 2 to 4 17 total impact of gst for the purpose of ctc