Tender For corrigendum : supply of transformer spares - drive mechanism part no spr0001 , dova chamber part no spr00328 , diverter switch part no spr00393 , selector switch part no spr00265 , oltc overhauling consumable set , bevel gear part no e07027000005 , oil surge relay part no e07709000001 , shaft assembly with coupling , oltc head top plate with top drive unit